News

The newly upgraded WattCycle 5120Wh server rack battery delivers stronger performance at the same price. It uses BYD Grade A LiFePO4 cells, support 1C charge/discharge speed, 3A active balancing, and a 100A intelligent BMS, all supported by touchscreen, Bluetooth, and CAN monitoring.

WattCycle 25.6 V 314 Ah Ultra Lithium Battery serves as the reliable heart of every off-grid expedition, packing 8.03 kWh of energy into a travel-ready, compact chassis. Engineered to support demanding loads and extended journeys, it sets a new standard for mobile power independence.   The Weight and Space Dilemma in Mobile Power For decades, lead-acid banks have defined mobile power—until their cumbersome weight and bulk began to hold adventurers back. A typical 12 V, 100 Ah lead-acid module can weigh over 60 lbs and demands frequent water maintenance, while its limited cycle life (often under 1,000 cycles at 50 % DoD) drives up replacement costs and downtime. For RV enthusiasts and marine captains alike, traditional lead-acid banks often translate into lost cargo space and extra weight that eats into payload capacity. Hauling hundreds of pounds of battery bulk not only limits room for gear but also increases fuel consumption and maintenance stops, as aging cells demand frequent water top-offs and replacements. It’s this struggle between capacity and convenience that has driven the search for a lighter, more compact energy solution—one that delivers high output without sacrificing valuable real estate on board.   Meet the Ultra Lithium: Big Energy, Small Package This 25.6 V 314 Ah Ultra Lithium LiFePO4 Battery occupies just an 18.9 × 14.25 × 9.53 inch in footprint and tips the scales at only 153.99 lbs. Inside that streamlined enclosure lies 8.03 kWh of usable energy—equivalent to a bulky lead-acid bank nearly twice its size. By condensing high-capacity storage into a single, manageable module, Ultra Lithium frees up valuable space for gear, provisions, or additional power modules in your RV, boat, or off-grid system. EVE Grade A+ Cells at Work At the core of the Ultra Lithium battery are EVE Grade A+ LiFePO4 cells—renowned for their reliability, uniform performance, and long service life. These same premium cells power WattCycle’s best-selling Mini series, trusted by tens thousands of RVers and off-grid users across US. Their superior cell matching and low internal resistance ensure stable output under load, while their high energy density allows more usable capacity in a smaller footprint. With built-in thermal and chemical stability, EVE Grade A+ cells also add an extra layer of safety in harsh environments where consistency is critical. Decades of Reliable Power The Ultra Lithium battery is engineered to endure—delivering over 6,000 charge and discharge cycles at 80 % depth of discharge (DoD). That translates to more than 15 years of dependable service under regular use, without noticeable capacity fade. Whether it’s powering your off-grid cabin year-round or supporting solar backup in your RV, this extended cycle life drastically reduces the need for replacements. Fewer battery swaps mean fewer expenses and less downtime—making the Ultra Lithium not just a power upgrade, but a long-term investment in energy security. High Power Output for Demanding Loads When your system demands serious current, the Ultra Lithium delivers. With a continuous discharge rate of 300 amps—equivalent to 7,680 watts of output power—this battery is built to handle high-demand applications without hesitation. Whether you're starting a heavy-duty inverter, running a rooftop air conditioner, or powering deck motors and refrigeration systems on board, this 25.6 V 314 Ah Ultra Lithium battery responds instantly and reliably. Its robust power output ensures smooth operation of sensitive electronics and large appliances alike, even under peak load conditions. Exceptional Temperature Resilience From frigid winter mornings in the Rockies to scorching summer afternoons on the Gulf Coast, this 25.6V 314Ah Ultra Lithium battery is built to perform when conditions are anything but ideal. With a wide operating range—charging from –5 °C (23 °F) to 60 °C (140 °F) and discharging from –25 °C (–13 °F) to 75 °C (167 °F)—this battery maintains stable performance in extreme environments where other chemistries falter. Whether installed in an exposed RV compartment or a marine engine bay, you can count on consistent output and protection from thermal damage, season after season. WattCycle APP Bluetooth Monitoring Stay connected to your power system no matter where the road—or water—takes you. With built-in Bluetooth functionality, the Ultra Lithium battery pairs effortlessly with the WattCycle mobile APP(available on iOS and Android), giving you instant access to real-time data. Monitor state of charge (SoC), voltage, current, temperature, and cycle count with just a few taps on your phone. The system also provides automatic alerts for over-current, low temperature, or other potential issues—so you can take action before it affects performance. It’s smart, simple, and designed to keep you in control at all times. Learn more about WattCycle Bluetooth APP please reading out Bluetooth guide blog. 8-Layer BMS protection and Military-Grade Casing At the core of the Ultra Lithium’s reliability is a high-performance 300A Battery Management System (BMS) designed with eight layers of active protection. It continuously monitors and safeguards against over-charge, over-discharge, over-current, short-circuit, high temperature, low temperature, cell imbalance, and reverse polarity—ensuring safe operation even under extreme conditions. The battery is enclosed in a UL94 V-0 flame-retardant ABS+PC housing that resists heat, impact, and environmental wear. Rugged M8 terminals provide secure, corrosion-resistant connections built to withstand moisture, vibration, and salt air—making this battery as tough as it is intelligent. Modular Scalability: Build Up to 64 kWh Whether you're powering a weekend camper or designing a full-scale off-grid system, the Ultra Lithium offers flexible scalability to match your energy needs. Connect up to two batteries in series for a 51.2 V system, or expand in parallel up to four units for a total of 1,256 Ah capacity—delivering over 64 kWh of usable energy. This modular approach allows you to start small and expand as your setup grows, with seamless integration into RVs, marine power systems, solar arrays, and home energy storage solutions. One battery or many, the performance remains consistent and reliable. Ready to upgrade your power system with WattCycle? View WattCycle 25.6 V 314 Ah Ultra Lithium Battery the full technical data sheet and sizing guide to explore detailed specifications and integration options. Whether you're designing a solar backup system, retrofitting your RV, or scaling up for off-grid living, our team is here to help. Contact a WattCycle specialist for expert consultation, personalized system recommendations, and guidance on installation and configuration. Let us help you build a smarter, more efficient power solution—tailored to your needs and built to last.

Our freshly develop WattCycle 51.2V 105Ah Golf Cart Battery delivers up to 5% more run time than its predecessor, so you can finish every hole without missing a beat. As the natural successor to our trusted 48V 100Ah golf cart battery model, this upgraded pack combines a beefed up capacity with the same drop in fit and proven safety of EV Grade A+ LiFePO4 cells and an advanced 200A BMS. Why Upgrade to 51.2V 105Ah? If you’re aiming to squeeze every last hole out of your round, the extra 5 Ah translates to roughly 256Wh and 2–3 more miles of driving—enough to finish 18 without scrambling for a recharge. Compared side-by-side, the 51.2V 105Ah model outlasts our 48V 100Ah battery, offering up to a 5 % increase in usable capacity while maintaining the exact same drop-in dimensions. Looking for a high-end golf cart battery in the U.S.? Our upgraded pack pairs that boost in run time with robust 200A BMS over-current protection, so you won’t have to worry about sudden cut offs or uneven power delivery on those long, hilly courses. All-Metal Frame & IP67 Protection The WattCycle 51.2V 105Ah Golf Cart Battery features a robust iron shell enclosure engineered to withstand vibration, impact, and mechanical stress. This reinforced chassis safeguards internal components and ensures structural integrity during installation and operation. Imagine your battery wearing a suit of armor—our iron-shell chassis shields the cells against vibration, shocks and the occasional bump when you’re powering up a steep incline. Engineered for reliable all weather performance, the battery carries an IP67 rating—fully dust-proof and capable of withstanding temporary immersion in water up to one meter deep for 30 minutes. Whether navigating damp fairways or unexpected rainfall, the battery’s enclosure prevents moisture ingress, maintaining uninterrupted power delivery throughout your round. EV Grade A+ LiFePO4 Cells & UL94 V-0 Fireproof Shell At the heart of the WattCycle 51.2V 105Ah battery are EV Grade A+ LiFePO4 prismatic cells—the same high-performance chemistry used in leading electric vehicles. These cells deliver consistent voltage under heavy load, resist capacity fade over hundreds of cycles, and maintain stable thermal characteristics even during extended use. Encasing the cells is a UL94 V-0–rated housing that self-extinguishes within seconds of flame removal. This fireproof shell provides an additional layer of protection, ensuring that, in the unlikely event of thermal stress, any ignition source is rapidly suppressed and contained. Advanced 200A BMS with Real-Time Coulomb Meter This 105Ah battery incorporates an upgraded 200A Battery Management System (BMS) that actively monitors and regulates cell voltage, current, and temperature. In the event of an over-current condition, the BMS instantly interrupts output to protect cells and wiring from damage. Low temperature cut off safeguards automatically suspend discharge below –4 °F (–20 °C) and charging below 32 °F (0 °C), then resume normal operation once safe thresholds are restored. An integrated coulomb meter reports SOC (state of charge) and power flow in real time, giving you precise visibility into remaining runtime. For even greater convenience, Bluetooth connectivity streams this data directly to your smartphone, so you always know exactly how full your battery is before tee off. Climb Hills & Cruise Longer With a steady 200A continuous discharge and a 600A peak current burst for up to 30s, the WattCycle 51.2V 105Ah battery delivers instantaneous torque for effortless uphill acceleration and sustained power on steep fairways. Advanced cell balancing and a constant-voltage design ensure that every amp-hour is fully available throughout the charge cycle, preventing voltage sag during peak loads. Whether navigating challenging terrain or extending your range for extra holes, this battery maintains consistent output for a reliably smooth ride. Plug-and-Play Compatibility All Golf Cart Brands The WattCycle 51.2V 105Ah battery is engineered to align precisely with the mounting points and electrical interfaces of Club Car, EZ-GO, Yamaha, Cushman, Star EV, Tomberlin, Icon EV, and Bintelli models. Its wiring harness matches OEM layouts, eliminating the need for splicing or adapter kits and ensuring a seamless transition from lead-acid to lithium without technical headaches. Adopting standardized industrial dimensions (17.76″ × 13.19″ × 9.64″), this battery slides effortlessly into existing compartments designed for eight 6 V modules. The result is a true one step replacement: remove your old pack, drop in the WattCycle unit, reconnect, and you’re ready to drive—with no custom fabrication or alignment adjustments required. Designed for High Value Quality The WattCycle 51.2V 105Ah battery is purpose built for golfers who prioritize durability and performance over bargain pricing. Every component—from the EV Grade A+ cells to the reinforced iron shell frame—reflects our commitment to long term reliability, minimizing downtime and maintenance. Installation is streamlined for convenience: simply remove your existing eight-module 6 V lead-acid pack, slide in the WattCycle unit, and reconnect the factory harness. In just minutes, your cart is upgraded with superior runtime and advanced safety features, allowing you to focus on your golf game rather than technical details. Upgrade Now Ready to elevate your golf with industry leading endurance and reliability? View the detailed spec sheet for the WattCycle 51.2V 105Ah Golf Cart Battery to explore full technical specifications, performance curves, and installation guidelines. For personalized system recommendations or volume pricing, contact our WattCycle specialists today. Whether you operate a private course, fleet, or personal cart, our experts will tailor a solution to your specific make, model, and usage requirements.

Step into a new era of portable power with WattCycle’s 12V 628Ah Ultra Lithium Battery—the very first single-unit LiFePO4 pack to deliver over 8 kWh of usable energy. That’s twice the capacity of our popular 12V 314Ah MINI BT battery, all in the same compact footprint you trust. No other brand brings you this level of energy storage in a standalone 12 V battery, making WattCycle the exclusive source for serious off-grid and mobile APP. Core Benefits at a Glance 1. Light as a Feather At just 154 lbs, it delivers three times the energy to weight of traditional lead-acid batteries, making setup and handling a breeze. 2. Massive Energy in a Compact Footprint Store over 8 kWh in an 18.9 × 14.25 × 9.53 in chassis—enough juice for days on the road or weeks off-grid without hogging precious space. 3. Ultra-Flexible Over-current Protection Default charge cutoff sits at 310+10 A but you can dial it up to 500 A for 20 seconds via the WattCycle APP. Discharge thresholds (1st: 310+10 A, 2nd: 350+10 A) and ≥ 1,800 A short-circuit guard keep your system safe under any load. 4. Long-Lasting Performance Engineered for 6,000+ cycles at 80% DoD, this battery delivers reliable power year after year—outliving standard LiFePO4 packs by 2–3×. 5. High-Power Delivery for Heavy Loads With a continuous 300 A discharge (3,840 W), it effortlessly drives inverters, welders, air conditioners, and industrial equipment. 6. Smart, APP-Based Monitoring Keep tabs on voltage, state of charge, temperature, and BMS alerts in real time—right from your phone, wherever you roam. 7. Rock-Solid Safety and Durability Armed with 8 layers of BMS protections and housed in a UL94 V-0 fire-resistant enclosure with corrosion-resistant terminals, this pack stands up to shock, vibration, and harsh environments. 8. Hassle-Free & Eco-Friendly Forget watering or checking acid levels—this pack runs maintenance-free and is 100% recyclable when it finally reaches retirement. Technical Specifications Dimensions & Weight 18.9 × 14.25 × 9.53 in | 153.99 lbs Capacity & Energy 628 Ah at 12.8 V (~8.04 kWh) Continuous Discharge 300 A (3,840 W) Cycle Lifespan 3,000+ cycles at 100% DoD, 6,000+ cycles at 80% DoD, 15,000+ cycles at 60% DoD. Operating Temperature Charge: –5 °C to 60 °C (23 °F to 140 °F) Discharge: –25 °C to 75 °C (–13 °F to 167 °F) BMS Safeguards Integrated cell balancing, thermal monitoring, and low/high-temperature cut-offs, alongside the above over-current protections Scalability Supports up to 4-series (51.2 V) or 4-parallel (2,512 Ah) configurations for a maximum of 128.6 kWh usable energy Build Quality UL94 V-0 fire-resistant ABS+PC casing with corrosion-resistant M8 terminals In-Depth Feature Spotlight Adaptive Over-current Control Thanks to our intelligent BMS over-current protection, you can dial in both charge and discharge limits right in the WattCycle APP. The default charge cutoff sits at 310 A + 10 A tolerance, but you can boost it to 500 A for up to 20 seconds—perfect for rapid topping-off after a long day off-grid. On the discharge side, a two-stage cutoff (310 A then 350 A) and ≥ 1,800 A short-circuit guard keep your inverter and equipment safe under any load profile. High-Power Output When your rig demands serious current, this pack answers with a continuous 300 A (3,840 W) discharge capacity. That’s enough to run heavy-duty inverters, air conditioners, welders, or industrial machinery without a hiccup, so you can tackle high-draw applications confidently. Smart Bluetooth Monitoring Stay connected to your battery’s health no matter how far you roam. Real-time updates on voltage, state of charge, temperature, and BMS alerts appear directly in the WattCycle APP, complete with custom notifications that let you spot issues before they become problems. Safety & Durability You Can Trust When you depend on your battery in extreme conditions, every layer of protection counts. The WattCycle 12V 628Ah pack delivers eight distinct safeguards: 1. Over-Charge Cut-Off Automatically disconnects charging when cell voltage reaches its upper safe limit to prevent over-voltage stress. 2. Over-Discharge Cut-Off Stops output when cell voltage drops to its lower safe threshold, avoiding deep-discharge damage. 3. First-Stage Over-Current Protection Limits discharge current to 310 A + 10 A tolerance, guarding against moderate overloads. 4. Second-Stage Over-Current Protection Adds a tougher cutoff at 350 A + 10 A for extreme loads, with rapid fault response. 5. Customizable Charge Over-Current Default 310 A + 10 A charge cutoff, user settable up to 500 A for 20 seconds via the WattCycle APP for high speed recharge. 6. High-/Low-Temperature Cut-Offs Internal sensors shut down the pack below –25 °C or above 75 °C, preserving cell health in the coldest and hottest environments. 7. Short-Circuit Defense Instant interruption of currents ≥ 1,800 A in microseconds to protect wiring and electronics from catastrophic faults. 8. Automatic Cell Equalization Balances individual cell voltages after each charge cycle and continuously monitors state of charge (SoC) to prevent weak-cell drift, ensure reliable capacity reporting, and maximize overall pack lifespan. Rugged, Military-Grade Build Fire-Resistant Housing: UL94 V-0 ABS+PC enclosure resists flame and prevents fire spread. Shock & Vibration Tolerance: Silicone mounts and structural bracing withstand 5 g shocks and 15 Hz vibration spectrums. Corrosion-Resistant Terminals: M8 stainless steel posts with gold plated contacts hold up to salt spray environments. IP65 Ingress Protection: Sealed gaskets and over molded entries block dust and splashes. With these eight precision-engineered safeguards—including accurate SoC tracking—and a bulletproof enclosure, your WattCycle 12V 628Ah battery stands ready for the toughest adventures. Scalable, Plug-and-Play Expansion Whether you need more voltage or more capacity, the WattCycle 12V 628Ah battery grows with your ambitions: 4-Series Configuration (51.2V) Stack four units end-to-end to power higher voltage inverters and industrial systems. No custom wiring harnesses—just plug each battery into the next using our keyed Anderson connectors, and you’re ready to go. 4-Parallel Configuration (2,512Ah / 32kWh) Link four batteries side-by-side to build a massive, low-voltage bank that delivers nearly 32kWh of usable energy. Ideal for off-grid cabins or larger backup installations, this layout keeps your pack at 12.8V for maximum compatibility with RV and marine gear. Simple Daisy Chain Wiring Each unit comes with heavy duty, color coded cables and lock in terminals. No need for electricians or special tools—your system is live as soon as you click the connectors together. With plug-and-play scalability up to 128.6kWh (4 × 4) total energy, you can tailor your setup on the fly—whether you’re expanding a solar array next season or upgrading your mobile rig before departure. Real-World Applications RVs & Adventure Rigs Mounting the WattCycle 12V 628Ah battery in your motorhome or overland trailer slashes pack weight by two-thirds compared to a lead-acid equivalent, freeing up payload for gear and water. With 8 kWh onboard, you can run lights, fridges, and electronics for days without recharging—and use the APP to tweak over-current limits for fast topping-off when shore power’s available. Marine Vessels Salt spray and engine vibration are no match for this military-grade LiFePO4 pack. The corrosion-resistant terminals and vibration-damped housing keep connections solid, while the 300 A continuous discharge delivers dependable starting amps—and a temporary 500 A boost handles rapid alternator charging after a long cruise. Off-Grid Solar Cabins For tiny homes and remote retreats, a single WattCycle 628Ah unit supplies roughly 8 kWh of steady power—enough for lighting, pumps, and small appliances. Its low self-discharge (<3%/month) and wide temp range mean you can leave it idle through winter with zero worry, then wake up to full capacity come spring. Commercial Backup Power Critical loads in telecom towers, agricultural operations, and emergency-response centers demand reliability. The 6,000-cycle lifespan and modular scalability (up to 128.6 kWh) ensure uninterrupted service through grid failures, while real-time SoC and temperature alerts via Bluetooth keep your maintenance team one step ahead. Head-to-Head Comparison 12V 628Ah vs. Two 12V 314Ah MINI BT Batteries Installation: One pack, one set of cables—no parallel wiring or balancing hassles. Footprint: Fits in the same tray you’d use for two MINI BTs, freeing up space for other gear. Monitoring: Single-APP interface for SoC, temperature, and customizable BMS over-current protection vs. juggling two Bluetooth profiles. 12V 628Ah vs. Lead-Acid Banks Weight: Roughly 154 lbs vs. 460 lbs for an equivalent 8 kWh lead-acid bank—a 66% reduction in installation effort. Lifespan: Delivers 6,000+ cycles at 80% DoD vs. ~500–800 cycles for lead acid, translating into decades of service. Cost of Ownership: Compare with lead acid battery, 10× longer lifespan and zero maintenance cuts total cost over time. Getting Started Download the Detailed Spec Sheet Access all dimensions, electrical specifications, and application notes in one convenient PDF for your engineering review or procurement process. Try Our Sizing Guide & APP Tutorial Use our interactive online calculator to configure the perfect bank size, and watch a brief walk through of the WattCycle APP’s monitoring and over-current setup features. Reach Out for Custom System Support Planning an RV install, off-grid cabin, or critical backup solution? Our team can provide wiring diagrams, load analyses, and turnkey recommendations—just drop us a line. Ready to take the next step? Visit the product page or contact us today!

WattCycle’s newest release, the 12V 314Ah MINI LiFePO4 Battery with Bluetooth, sets a new benchmark for off-grid energy storage. Building on the success of our 12V 280Ah model, this upgraded version delivers a true 314Ah capacity—providing nearly 400Wh more usable power in the same compact form factor. Whether you're replacing bulky lead-acid banks or upgrading from a standard 12V 300Ah lithium battery, this slim, high-performance unit gives you more runtime without adding weight or complexity. Designed for RV travelers, off-grid solar setups, and marine systems that demand long-lasting reliability, the WattCycle 12V 314Ah deep cycle battery pairs high energy density with smart Bluetooth monitoring for complete control on the go. With faster charging, rock-solid safety features, and zero maintenance, it’s the ideal upgrade for anyone serious about energy independence—whether you're heading deep into the backcountry or prepping for power outages at home. Why 314Ah Matters Upgrading from a nominal 300Ah pack to a true 314Ah capacity isn’t just a numbers game—it means real extra runtime when you need it most. While many “12 V 300 Ah LiFePO4 battery” claims hover around the 300Ah mark, WattCycle’s MINI model delivers a guaranteed 314Ah of usable energy, translating to roughly 4,019Wh of power. That extra 14Ah translates into an additional 5 % runtime—a critical buffer for RVers crossing deserts, off-grid homeowners facing cloudy weeks, or mariners on multi-day trips. Compared with the best-selling 12V 280Ah MINI LiFePO4 battery, our the new 12V 314Ah model has truly improved in terms of running time and performance, without sacrificing the compact and lightweight design that users love. In terms of size, the WattCycle 12V 314Ah Mini LiFePO4 Battery is only 0.12 inches longer than the 12V 280Ah MINI, with the same width and height. However, the energy capacity is 426Wh more than 12V 280Ah MINI LiFePO4 battery. By choosing the WattCycle 12V 314Ah MINI LiFePO4 Battery, you’re tapping into our most robust deep cycle offering yet—delivering the same reliability and zero-maintenance ease as the 280 Ah classic, with even more runtime for those who push their setups harder. For those running three 12V 100Ah batteries in parallel, you’d typically combine to 300 Ah. That setup adds weight, wiring complexity, and more points of failure. By choosing one WattCycle 314Ah MINI battery instead, you get: Configuration Total Capacity Total Weight Approx System Complexity 3× (12 V 100 Ah) lead or LiFePO4 battery 300 Ah 180 lbs Multiple batteries & BMS 1× WattCycle 12 V 314 Ah LiFePO4 battery 314 Ah 59.5 lbs Single integrated unit   Whether you’re shopping for “12V 300Ah batteries for solar panels” or hunting down a “12V 300Ah deep cycle battery” for your trolling motor, the WattCycle 314Ah model gives you more power in a lighter, simpler package—so you can focus on the journey, not the juice. Built for Heavy Duty: Power & Performance When you shop for a 12v 300Ah lithium battery, you’re looking for gear that can handle serious loads day in and day out. The WattCycle 12V 314Ah LiFePO4 Battery steps up with a hefty 4,010Wh of stored energy—about 12 % more capacity than a standard 300Ah pack—so you can run high-draw appliances without sweating the details. Here’s what 4,010Wh can power in real-world conditions: A 1,500 W air conditioner for roughly 2.5 hours A 600 W refrigerator continuously for about 6.5 hours A 200 W LED lighting system for over 20 hours A 1,200 W trolling motor at half throttle for around 3 hours Compared to a typical 300Ah lithium battery 12V, the extra headroom means fewer recharge stops and more confidence. When pushing your system to its limits. Whether you’re boondocking in the desert, navigating choppy waters, or backing up critical home circuits during an outage, this pack’s higher energy density and robust discharge rating deliver the reserve you need—without adding bulk or complexity. Smarter Monitoring with Bluetooth 5.0 WattCycle’s 12V 314Ah LiFePO4 Battery comes equipped with Bluetooth 5.0, putting real-time system data right in your pocket. Using the WattCycle app on Android or iOS, you can: Check voltage and state of charge at a glance Monitor battery temperature to prevent overheating Track depth of discharge and remaining runtime Wireless tracking isn’t just a convenience—it’s a necessity for today’s off-grid and RV setups. Whether your solar panels are mounted on a remote cabin roof or your battery bank sits under the camper floor, you can verify performance and catch potential issues without crawling into tight spaces. That means fewer surprises on cross-country trips or during power outages at home, and more confidence every mile of the journey. Rock-Solid Safety & Longevity This 12V 314Ah LiFePO4 Battery features an all-round 200 A BMS, delivering comprehensive protection against overcharge, over-discharge, and short circuits. With built-in BMS over-current protection, your pack automatically cuts off at 210 A±10 A to prevent cell damage—ideal for heavy loads like high-draw inverters or trolling motors. To guard against freezing conditions, the low-temperature cutoff activates below –4 °F (–20 °C), preserving cell health when you’re winter camping or fishing through the ice. Coupled with high-grade aluminum cooling fins that shed heat 30 % faster, this battery thrives in both scorching deserts and sub-zero environments. Inside, UL-certified Grade-A LiFePO4 cells boast an impressive 5,000–15,000 deep-cycle lifespan, translating to up to ten years of daily use. That means instead of replacing a lead-acid bank every 3–5 years, you can count on your WattCycle pack for a decade of reliable power—keeping your RV lights on, your solar backup ready, and your marine electronics humming without worry. Thermal Management & Durability The WattCycle 12V 314Ah LiFePO4 Battery stands up to harsh conditions thanks to its unique full-aluminum internal frame,Which not only reinforces the cell structure but also integrates cooling fins that improve heat dissipation by 30 %. That means during heavy discharge or rapid charging, excess warmth is whisked away faster—protecting cell health and maintaining peak performance. With an IP65 waterproof rating, this pack resists dust, splashes, and brief immersion, making it equally at home on a salt-sprayed boat deck or tucked under an overland rig. Inside, high-grade, oxygen-free copper wiring boosts current-carrying capacity by 50 %, ensuring you get every amp you need for power-hungry devices without voltage sag. Rugged ABS-PC casing and UL-tested shock resistance round out a design built to endure vibration, impacts, and the rigors of off-grid life—so you can count on reliable power anytime, anywhere. Space & Weight Savings Say goodbye to bulky banks when you choose the WattCycle 12V 314Ah LiFePO4 Battery. At just 59.5 lbs, it’s roughly one-third the weight of a comparable 12V 300Ah lead–acid setup (≈180 lbs), yet delivers twice the usable energy and a far longer service life. That lightweight design makes installation a breeze—no more wrestling heavy modules into tight compartments or risking back strain on remote job sites. For off-grid solar arrays and mobile power systems, every pound and cubic inch counts. This “12v 300ah deep cycle battery” alternative slips into the same footprint as many slim lithium options without sacrificing capacity, freeing up valuable storage space in your RV garage or under the cabin floor.Whether you’re planning a cross-country overland trip or expanding your backyard solar bank, WattCycle’s compact form factor lets you pack more power into less room—so you can stay unplugged and worry-free for longer stretches. Flexible System Expansion Design your power setup to grow with your needs. The 12V 314Ah LiFePO4 Battery supports up to a 4S4P configuration, building a mega-bank of 64.3 kWh—perfect for hefty solar arrays (“12v 300ah batteries for solar panels”) or large-scale home backup. Its modular design lets you silently scale from a single unit for a trolling motor boost to a multi-battery bank that keeps critical circuits running through extended outages. With standardized M8 bolt terminals and matched Bluetooth profiles, adding more packs is plug-and-play—no rewiring headaches or mismatched performance. Three Ways for Quick-Charge Get back online fast with three easy charging methods: 1.Solar Panels (1,200 W) Full charge in one sunny day (≈4.5 hours of peak sun). Ideal for “solar battery 12v 300ah” setups when paired with an MPPT charge controller. 2.Alternator or Generator DC-to-DC charging via a compatible converter; AC generator with a suitable LiFePO4 charger. Recommended voltage: 14.2 – 14.6V Recommended Currents: 60 A (0.2 C) → full in ≈5 hours 150 A (0.5 C) → full in ≈2 hours (≈97 %) 3.LiFePO4 Smart Chargers Use a charger specifically designed for LiFePO4 charger. A dedicated 14.6V LiFePO4 smart charger follows a tailored charge profile that maximizes cell health and cycle life. By matching your WattCycle 12V 314Ah LiFePO4 Battery with a purpose-built 14.6V 60A LiFePO4 smart charger, you not only speed up recharge times—around 5 hours to 100% at 60 A—but also safeguard your investment for 5,000–15,000 cycles. No matter your power source, WattCycle’s BMS ensures safe charging with over-current and high-temperature cutoffs—so you can top up quickly without worry. Conclusion Ready to take your energy setup to the next level? Upgrade today to the WattCycle 12V 314Ah LiFePO4 Battery—the lighter, longer-lasting alternative to any “12V 300Ah lithium battery” and "12V 280Ah LiFePO4 battery" on the market. Shop Now:View product details & purchase Get the App: Download the WattCycle mobile app on Google Play or the App Store for real-time Bluetooth monitoring. Extend Your Peace of Mind: Register your battery to activate our full 7-year warranty—no more maintenance hassles, just reliable power for years to come. Join the growing community of RVers, off-grid homeowners, and marine enthusiasts who trust WattCycle for their deep-cycle needs. Power up smarter, stay unplugged longer, and experience why our 12V 314Ah LiFePO4 battery is the go-to choice for serious adventurers and solar professionals alike.

Welcome to the launch of our latest marine starting battery. In today's market, the demand for reliable power solutions is high, and our new battery—12V 100Ah 1200CCA dual purpose battery addresses that need perfectly. Designed as a dual purpose battery, it meets the rigorous requirements of both marine and automotive applications, delivering consistent performance whether starting an engine or powering on board electronics, like trolling motor, fish finder ect.   Discover how our product combines efficiency with dependable power for every journey. Introducing our 12V 100Ah 1200CCA Marine Cranking Battery with integrated Bluetooth technology—a reliable power solution designed for both marine and automotive applications. Built with advanced lithium technology, this lithium marine starting battery delivers robust performance and dependable energy when starting engines or powering onboard systems. Its compact dimensions and lightweight design allow for easy installation in tight spaces, making it an ideal choice for modern watercraft and vehicles. Core Features and Benefits Dual-Mode Power Engineered to deliver consistent performance on both watercraft and road vehicles, WattCycle 12V 100Ah 1200CCA Marine Cranking Battery provides dependable energy for rapid engine starts as well as continuous power for onboard electronics. Its dual-mode design ensures that whether you're starting a boat or powering your car’s systems, the performance remains reliable throughout every journey. Robust Cranking Performance Boasting an impressive 1200 CCA, this marine cranking battery offers the strength needed to start engines in challenging conditions. Its cranking power stands strong against models rated at 1000 CCA, ensuring reliable performance even when conditions are demanding. Deep Cycle Capability Built for endurance, the battery supports over 6,000 deep cycles at an 80% depth of discharge. This balanced performance between instant cranking power and sustained energy storage makes it a versatile solution for both marine and automotive applications. Advanced Functionalities and Monitoring Bluetooth Connectivity Equipped with integrated Bluetooth technology, this marine cranking battery offers real-time monitoring of battery health, charge status, and usage. The WattCycle APP enables you to track performance details effortlessly, ensuring that your lithium cranking battery is always operating at its best. Reading more Bluetooth Guide about WattCycle APP Bluetooth system. Force Start Button In the rare event that the battery fails to self-start, the forced start button offers a reliable backup, enabling an emergency power-up when you need it most. This feature ensures that you maintain access to power under critical conditions, further enhancing the battery's versatility and reliability. Smart Self-Heating Feature Designed for optimal performance in cold conditions, the battery’s smart self-heating function activates when temperatures drop below 0°C/32°F. It steadily warms the battery until it reaches 5°C/41°F, maintaining the robust performance expected from a 1200 cold cranking amp battery. Safety, Durability, and Efficiency Battery Management System (BMS) Featuring a robust 200A Battery Management System, this battery is designed to protect against over-current, over-charging, over-discharging, and short circuits. Its ABYC certification underscores our commitment to safety and reliability, ensuring that your power source is secure under all operating conditions. IP67 Water-Resistance and Durability Built to withstand harsh environments, this battery holds an IP67 waterproof rating, making it suitable for both land and marine applications. Its durable design ensures dependable performance even in demanding conditions, whether you're out at sea or on the road. Application of WattCycle Marine Cranking Battery Marine Applications Ideal for powering boats, trolling motors, and onboard electronics, this battery excels in marine environments. Its design as a lithium marine starting battery ensures robust performance for those seeking a reliable dual purpose marine battery. Whether you’re embarking on fishing trips or navigating open waters, this battery delivers the consistent power needed for both engine cranking and sustained electronic operations. Automotive and RV Use Engineered for versatility, this battery is fully compatible with car engines and RV power systems. Its dual purpose design not only provides the high current necessary for engine starts but also offers a steady energy supply for continuous use. This makes it an excellent choice for automotive enthusiasts and RV owners who need dependable power in various conditions. Off-Grid and Recreational Vehicles For off-grid systems and golf cart, our battery’s dual purpose design offers both the surge for engine starts and sustained energy for continuous use. Its efficient energy management capabilities ensure that whether you need to power essential systems or enjoy extended off-grid adventures, this battery stands as a dependable solution. Comparison with Traditional Alternatives When compared to conventional lead-acid batteries, our dual purpose lithium marine battery stands out in terms of efficiency, maintenance, and reliability. It delivers a high level of performance with less weight and a compact design, making it easier to install in modern marine and automotive applications. This marine starting battery offers consistent power output, rapid cranking performance, and extended cycle life, reducing the need for frequent replacements and lowering overall maintenance costs. Which Battery Is Right for You Choosing the right battery for your boat or vehicle depends on your specific needs and usage patterns. Deep cycle battery vs start battery and dual purpose battery, how to choose? If powering onboard electronics like trolling motors and fish finders is your primary concern, a deep cycle LiFePO4 battery might be a good option; however, these are not typically designed to start an engine. For those who require a strong, immediate burst of power for engine starts, a marine starting battery is the clear choice due to its high Cold Cranking Amps (CCA). For boat owners and RV enthusiasts, space and weight are often critical considerations. A dual purpose battery offers a practical solution by combining both deep cycle and starting capabilities into a single, compact unit. This means you can benefit from steady power for your electronics as well as reliable engine start-up without the need for two separate batteries. If your vessel or vehicle experiences heavy continuous loads and frequent cycling, you may need to consider whether a dedicated deep cycle battery paired with a dedicated starting battery is more appropriate. Ultimately, evaluating your usage frequency, load requirements, and available space will help determine the best battery choice for your situation. The WattCycle 12V 100Ah 1200CCA Marine Cranking Battery exemplifies a versatile dual purpose solution that provides the strong starting power you need, along with consistent energy for onboard systems. Whether you're powering a boat, an RV, or another vehicle, this marine starting battery delivers reliable performance and exceptional efficiency. We invite you to learn more about how this dual purpose battery can enhance your marine and automotive power solutions. For further details or discount, please contact us or visit our website to see how this lithium marine starting battery can meet your specific needs.