WattCycle 12V 314Ah Mini Bluetooth Lithium Deep Cycle Battery
WattCycle 12V 314Ah Mini Bluetooth Lithium Deep Cycle Battery - 1 Pack is backordered and will ship as soon as it is back in stock.
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User Manual
User Manual
Shipping Service
Shipping Service
Thank you for choosing WattCycle for your LiFePO4 battery needs! We understand that getting your batteries quickly and safely is important to you. This policy outlines the shipping process for WattCycle orders.
Destinations:
- We only ship orders to Continental
- Currently we DO NOT ship to Alaska, Hawaii, and Puerto Rico.
- Please do not use PO Box addresses, which are not within the delivery range of FedEx. If you accidentally use such addresses, please contact us to change them in time to avoid delays in delivery.
Shipping Fee:
- FREE shipping on all orders
- Shipping method: UPS Ground & Fedex
Shipping time:
The time frame of an order delivery is divided into two parts:
- Processing time: 1-2 business days
- Shipping time: 2-5 business days
- The shipping will delay for some objective or uncontrolled reasons. We will notice our customer ahead for delays.
Tracking Your Order:
- Once your order ships, you will receive a confirmation email with a tracking number. You can use this tracking number to track the progress of your shipment on the carrier's website.
Disclaimer:
- While we strive to meet the estimated delivery times provided, these are estimates and actual delivery times may vary depending on factors beyond our control, such as carrier delays or weather conditions.
Changes to This Policy:
- We reserve the right to modify this Shipping Policy at any time. We will post any changes to this policy on our website.
We appreciate your support! If you have any questions about our shipping policy, please feel free to contact us at service@wattcycle.com.
Warranty Policy
Warranty Policy
WattCycle Warranty Policy
Thank you for choosing WattCycle. This warranty policy applies to all products purchased through official WattCycle channels and authorized distributors. Please read this policy carefully before installation and use.
I. Warranty Commitment
WattCycle warrants to the original consumer that under normal use conditions, products shall be free from defects in material and workmanship from the date of original purchase.
1. Warranty Period
|
Product Category |
Specific Model/Series |
Base Warranty |
Extended Warranty (with Registration) |
|
LiFePO4 Batteries |
All new battery models |
5 years |
2 years (7 years total) |
|
Like-New Products |
All like-new models |
1 year |
— |
|
Battery Cells |
All models |
No warranty |
— |
|
Accessories |
Chargers, inverters, controllers, wiring cables, etc. |
1 year |
— |
Note: Extended warranty must be activated through product registration on the official WattCycle website within 3 months of purchase.
2. Warranty Period Calculation
- The warranty period begins from the original consumer’s purchase date.
- Valid proof of purchase (order screenshot, invoice, etc.) is required to establish the purchase date.
- Repaired or replaced products do not extend the original warranty period, which remains based on the original purchase date.
II. Warranty Claim Process and Fees
1. Claim Process
- Step 1: Contact WattCycle Customer Service (service@wattcycle.com), describe the issue, and provide proof of purchase.
- Step 2: Our technical team will contact you within 24-48 hours to assist with troubleshooting.
- Step 3: Once the issue is confirmed as a quality defect, customer service will provide a Return Merchandise Authorization (RMA) number and return instructions.
2. Fee Responsibility Rules
|
Scenario |
Resolution |
Shipping Responsibility |
Notes |
|
Quality issue (within 6 months) |
Free replacement/refund |
WattCycle covers shipping costs |
Requires quality defect confirmation, valid proof of purchase, within warranty period. |
|
Quality issue (after 6 months, within warranty) |
Free replacement |
WattCycle covers shipping costs |
Requires quality defect confirmation, valid proof of purchase, within warranty period. |
|
Personal reason (return within 30 days) |
Return for refund |
Customer bears return shipping |
Original packaging intact, product in good condition. Warehouse restocking fees will be charged. |
|
Personal reason (return after 30 days) |
Return for refund |
Customer bears two-way shipping |
Warehouse restocking fees and depreciation fees will be charged. |
|
Wrong item shipped / Missing item / Transit damage |
Free replacement |
WattCycle covers shipping costs |
/ |
|
Order cancellation (before shipment) |
Refund |
No shipping charges incurred |
/ |
|
Over 6 months (non-quality issues) |
Returns not accepted |
/ |
/ |
3. Refund Policy
- Refunds are applicable only for quality issues reported within 6 months of purchase. Quality issues identified after 6 months will be resolved through product replacement.
- The refund amount will be calculated after final verification, deducting any applicable fees, and returned via the original payment method.
- Refunds will be processed via the original payment method within 3-5 business days after receipt and inspection of the returned product.
III. Warranty Exclusions (Limitations of Liability)
This warranty does not apply to damage or malfunction caused by:
1. Accidents and Force Majeure
- Accidents, abuse, misuse, or negligence
- Natural disasters such as fire, flood, lightning, earthquakes, extreme temperatures
2. Improper Use and Installation
- Failure to follow installation, operation, or maintenance instructions in the product manual
- Voltage/current mismatch, reverse polarity connection
- Use of incorrect fuses or undersized cables
- Series or parallel connections exceeding permissible limits (e.g., systems exceeding 48V)
- Mixing with other battery brands
3. Unauthorized Modifications or Repairs
- Any disassembly, modification, or repair by unauthorized personnel
- Altered, damaged, or removed serial numbers
4. Normal Wear and Tear and Commercial Use
- Cosmetic wear or scratches from normal use.
- Natural capacity degradation over time (normal aging).
- Use exceeding the product’s designed cycle life or technical specifications.
5. Long-Term Inactivity
- Damage resulting from failure to perform periodic charging maintenance for over one (1) year.
6. Other
- Inability to provide valid proof of purchase.
- Products that have been fully refunded through other means.
IV. Final Provisions
- WattCycle reserves the right of final interpretation of this warranty policy.
- This policy may be revised periodically. All changes will be published on our official website.
Contact Information:
📧 Official Customer Service Email: service@wattcycle.com
🌐 Official Website: www.wattcycle.com
WattCycle 12V 314Ah Mini Bluetooth Lithium Deep Cycle Battery
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Tested by MarineHowTo (Rod “RC” Collins) — an independent ABYC Certified Marine Electrical Systems Specialist focused on marine energy management systems. In real-world marine testing, RC noted that the WattCycle 314Ah BT Mini is well-suited for boating applications, striking a strong balance between safety and price—and he described it as one of the best-built batteries he’s seen at an entry-level price point. Our sincere thanks to RC for sharing honest, reliable data and feedback to help customers make smarter decisions.
Smarter Monitoring
With Bluetooth 5.0, the WattCycle app on Android/iOS lets you check voltage, temperature, and depth of discharge in seconds. Wireless tracking is essential for remote solar arrays or under-floor RV banks—no crawling into tight compartments to verify your LiFePO4 battery health.
Weather-Proof Performance
Whether you’re charging in 113 °F summer heat or discharging at –4 °F ice-fishing, this battery keeps pace. Charge range: 32 °F to 113 °F (0 °C–45 °C). Discharge range: –4 °F to 140 °F (–20 °C–60 °C). For anyone running a “solar battery 12V 300Ah” system in extreme climates, this pack won’t flinch.
High-Capacity Performance
Compared with our 12V 280Ah MINI model, the new 314 Ah battery packs 15 % higher energy density and a 12 % capacity bump—ending your energy anxiety once and for all. For those eyeing a “300Ah slim lithium battery 12V,” this is the same sleek form factor with extra juice. At just 59.5 lbs (15.12×7.64×9.76 in), it’s one-third the weight of lead-acid equivalents yet doubles the usable energy. Perfect when you need a “solar battery 12V 300Ah” solution without sacrificing cargo space.
Triple-Shield Safety
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. Meanwhile, braided copper wires have been newly added inside the battery, enabling it to provide more than 50% of the power with the minimum voltage drop. This three-tier design makes it one of the safest 12V 300Ah deep cycle battery options on the market.
Simplified Comparison
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 additional benefits.
Scalable Energy Expansion
Scale up your array with extra WattCycle battery to build a 4S4P (64.3 kWh) mega-bank ideal for large solar arrays or whole-home backup. your go-to for WattCycle 12V 314Ah batteries that need to grow as your demand does.
Variety of Application Scenarios
This battery is perfectly suitable for a variety of application scenarios, From RV solar boondocking to home backup circuits, including trolling motors and on-board equipment. This module replaces bulky lead-acid stacks and standard 12V 300Ah deep cycle battery setups, streamlining power wherever you deploy it.
Upgraded WattCycle 12V 314Ah Mini LiFePO4 Battery with Bluetooth
1. High-Capacity Upgrade to 314Ah & 4.01 kWh
WattCycle 12V 314Ah LiFePO4 Battery delivers 4019Wh energy, higher than three 12V100Ah lithium batteries connected in parallel—ideal for RVs, solar systems, home storage, trolling motors, and marine. Support Max. 4S4P to 64.307kWh—hassle-free ENERGY anxiety
2. Advanced Conductive System
Wattcycle LiFePO4 battery improves 50% higher current output efficiency with high-grade braided oxygen-free copper wires, supporting 2000W+ devices. Ideal for heavy-duty applications.
3. All-Round BMS Protection & Low-Temperature cut-off Protection
It has a built-in 200A BMS to provide 100% protection and is equipped with high-grade aluminum cooling fins that dissipate heat 30% faster and a low-temperature cut-off function to protect the battery below -4°F (-20°C), hassle-free in harsh weather.
4. Unique Internal Metal Frame Safety Design
The Wattcycle LiFePO4 battery has zero swelling risk and a solid internal battery structure with a unique internal metal frame, passing UL62133 safety tests, and is shock-resistant with a durable ABS case.
5. Bluetooth Smart Management
Monitor battery voltage/temperature in real-time via Bluetooth 5.0 (300ft range). Compatible with Wattcycle 12V battery systems for golf carts, campers, and backup power.
6. 10 Years Longer Using
Equipped with Grade-A cells only, the Wattcycle LiFePO4 battery can escort you for ten more years with 5,000-15,000 deep cycles. Safe, long life cycles, cost-effective & eco-friendly.
7. Good Choice to Replace Lead-Acid
Weighing 59.52 lbs(15×7.64×9.76inch), it is 1/3 the weight of a 12V 300Ah lead acid battery (appr.180 lbs), but 2X in energy and 3- 5X longer using years. Smaller, lighter, faster to charge, and no hassle of line connection.
Tech Specs
General
| Dimensions (Inches) | 15.12 (L) x 7.64 (W) x 9.76 (H) |
| Weight | 59.52lbs / 27kg |
| Waterproof Rating | IP65 |
| Warranty | Sign Warranty to extend for 7 years |
| Case Material | ABS+PC/UL94 V-0 |
| Terminal | M8 bolts |
Battery BMS
| BMS | 12.8V/200A |
| Standard/Max. Continuous Charging | 62.8A/200A |
| Max. Continuous Discharge Current | 200A |
| Over-current Discharge Protection | 210A±10A |
| Over-current Charge Protection | 210A±10A |
| Short Circuit Current Protection | Support |
| Release Condition | Cut Load |
| Charging High Temperature Protection | 140°F ~ 158°F / 60°C ~ 70°C |
| Discharging High Temperature Protection | 149°F ~ 167°F / 65°C ~ 75°C |
| High Temperature Protection Release Condition | Drop by 41°F ~ 59°F / 5°C ~ 15°C |
| Charging Low Temperature Protection | 23°F ~ 41°F / -5°C ~ 5°C |
| Discharge Low Temperature Protection | -13°F ~ 5°F / -25°C ~ -15°C |
| Low Temperature Protection Release Condition | Rise by 41°F ~ 59°F / 5°C ~ 15°C |
| Rated Voltage | 12.8V |
| Standard Charging Voltage | 14.6V±0.2V |
| Shipping Voltage | 12.8V~13.5V |
| Shipping Capacity | 50% |
| Cycle Life | 6000@80%DOD |
| Self Discharge Rate | <3%/Month |
| Series & Parallel Connections | Max. 4 Parallel 4 Series |
| Cell Certifications | UL1642/UL2580/UN38.3 |
Frequently Asked Questions
1. Does the BMS include low-temperature disconnect?
1. Does the BMS include low-temperature disconnect?
Yes. Our 200 A BMS protects against charging or discharging in unsafe temperatures.
- Charge cutoff: 32 °F to 113 °F (0 °C – 45 °C)
- Discharge cutoff: –4 °F to 140 °F (–20 °C – 60 °C)
2. Do I have to buy a special charger for LiFePO4 batteries?
2. Do I have to buy a special charger for LiFePO4 batteries?
We recommend using a WattCycle LiFePO4 battery charger, which is specifically designed to meet the unique charging needs of LiFePO4 batteries. Alternatively, you can also charge the battery using photovoltaic solar panels through MPPT or use an inverter with a built-in AC to DC charging function.
For more information about chargers specifically used for LiFePO4 battery, please read our blog: Can I Charge a LiFePO4 Lithium Battery with a Normal Charger？
3. Are WattCycle 12V 314Ah LiFePO4 batteries safe?
3. Are WattCycle 12V 314Ah LiFePO4 batteries safe?
Absolutely. LiFePO4 is the most stable lithium chemistry on the market. WattCycle cells are UL-certified and housed in an IP65-rated case. Our internal BMS guards against:
- Under voltage & over-voltage
- Over-current & short circuits
- Over-temperature
- Low-temperature cut-off
4. Can I use this battery as a starter battery?
4. Can I use this battery as a starter battery?
No. WattCycle 12V 314Ah LiFePO4 lithium batteries are not intended to be used as starting batteries but energy storage, please do not use them to start any devices.
For engine starts, can use WattCycle 12V 100Ah dual purpose battery, but only for marine. For the car generator, please use a purpose-built starting battery.
5. Can I charge WattCycle LiFePO4 lithium batteries with solar panels?
5. Can I charge WattCycle LiFePO4 lithium batteries with solar panels?
Yes—our 12V 314Ah LiFePO4 Battery is designed for seamless solar charging. Simply pair it with an MPPT charge controller and a 1,200 W PV array to top up in one sunny day (≈4.5 hrs of peak sun).
- Optimal Setup: A 1,200 W solar panel bank feeding an MPPT regulator ensures efficient charging of your solar battery 12V 300Ah.
- Charge Profile: MPPT controllers adjust voltage/current to maintain the ideal 14.2–14.6 V range, protecting cell health and maximizing cycle life.
- Scalable: Whether you’re building out 12V 300Ah batteries for solar panels in parallel or keeping it simple with one pack, the WattCycle system adapts—no special wiring or firmware tweaks required.
6. How do I store WattCycle LiFePO4 lithium batteries?
6. How do I store WattCycle LiFePO4 lithium batteries?
It is recommended to store WattCycle LiFePO4 batteries at 50% state of charge (SOC). If the batteries are stored for long periods, recharge the batteries at least every 3 months. Recommended storage environment: 10℃～35℃ (50℉～95℉），45%RH～75％RH.
To learn more about storing lithium batteries, please read our blog: How Can I Properly Maintain My LiFePO4 Battery?
7. What maintenance does the battery require?
7. What maintenance does the battery require?
Zero maintenance—no watering or equalizing. Just install, register your 7-year warranty, and enjoy consistent, long-lasting power for years to come.
Let customers speak for us
Exactly as described, includes comms cable and battery cables, screen is easy to read, appears to be accurate ah rating. Quality case. Excellent packaging (thick cardboard box with protective card edge strips with dense foam to cushion movement).
Only improvements they can make are instructions don't explain how to mount the rack and handles but does talk about not included stacking kit mounting. And the app isn't particularly well thought out. I understand it's a reskin of the BMS manufacturers app, but it could be a lot better with very little changes.
But overall 9/10, exactly what I needed at the price I needed.
I haven't had the battery long enough to see battery full potential and charging times. Soon though.
Bought this second battery to use in series with the first battery to make 24V battery bank to run my EG4 direct solar 12,000 Btu 120V ac mini split overnight. I can air condition 600 square foot area with just 2-12.8V 280ah batteries in serious. Although we did another video where we ran this mini split overnight with just one WattCycle 12.8V battery and a 120V ac output inverter Keeps area 600 sq ft area 76-78 degrees overnight even with it being 116 degrees outside yesterday. Still have 40-50 percent state of charge left in batteries in the morning when the battery bank is charged up again. I will definitely buy more WattCycle batteries. Have been using for several months now, extremely reliable for me. Highly recommend the WattCycle batteries.
Batteries arrived in good shape & well packed. Came with short & longer bolts which was helpful. I installed 4 of them in a boat as the primary house side. They replace 4 each 210 AHr AGM batteries that were half again bigger and twice as heavy (120 lbs each) as these ~60 lb 314 AHr LifePO4 batteries. This tripled my house capacity & removed 240 lbs of the weight. I added 250A MRBF Fuses to each +positive battery, as well as a 350A Class-T fuse on the overall DC+ side. Additionally, I added a Victron 500A Waterproof SmartShunt to monitor the charge/discharge levels. For charging, I added a Victron Orion XS 50A DC to DC charger for the alternator, and a 40A LifePO4 AC to DC Charger with a remotely activated plug. So far, the batteries seem to be working as advertised.
Had a few issues with shipping due the batteries being so heavy, may have been dropped by FedEx but WattCycle shipped out a replacement. Can’t fault the customer service. Just finished putting my server rack together before wiring it to the inverter.
I needed longer battery life, my old 100ah battery just wasn’t cutting it. With this battery I can run my fridge/freezer 3 times longer without worrying about running low on battery life.
This harness takes all the guess work out of linking your batteries in a series. Just connect all the wires up and plug the ends in and it’s done. They also come with really nice heat shrink connectors to hook up to your main power wires. 100% a must have for a 36v system.
Use to charge Wattcycle 280. Charges in reasonable time. Helpful display to match my Victron shunt and Bluetooth from battery. Added inline heavy duty on/off power switch to better control charging cycle.
Very well constructed, packaged, and documented battery.
