【Automatic $50 OFF/PACK】48V (51.2V) 100Ah 3U Server Rack LiFePO4 Battery
【Industrial-Grade Design】
✅ Compatible with server racks/solar energy storage cabinets, saving space；
✅ Supports parallel expansion — Up to 20 units in parallel, easily scaling to 2,000Ah capacity | 102.4kWh；
✅Universal compatibility: Works with major adapter brands；
【Ultra-Long Lifespan & High Efficiency】
⚡ Max. 100A charger / discharge current— Powers high-demand equipment for extended periods
♻️ 5000+ cycles (90% DOD) — 5.12kWh, 10-year lifespan, 3x longer than lead-acid batteries
🌞 100A high-current solar input — Perfectly compatible with PV systems, MPPT controller ready
【Smart Management & Safety】
📱 CAN/RS232/RS485 monitoring
🔥 Triple safety protection — Overcharge/over-discharge/short-circuit protection, IP20 rating + flame-retardant casing
❄️ Wide operating temperature range (-20℃~65℃/-4°F~149°F)
【Professional Application Scenarios】
🏢 Data center/base station backup power — 48V high-voltage platform, efficiently replaces traditional lead-acid
🌍 Off-grid solar energy storage — Paired with inverters for residential/commercial green energy storage
🚚 Electric forklifts/AGV equipment — Supports high-rate discharge for instantaneous high-current demands
【Automatic $50 OFF/PACK】48V (51.2V) 100Ah 3U Server Rack LiFePO4 Battery - 1 Pack ($50 OFF) is backordered and will ship as soon as it is back in stock.
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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.
Shipping Warehouse:
- Address: 20533 East Walnut Drive North, Walnut, California 91789
- Tel: 909 9600600
- Email: service@wattcycle.com
Warranty Policy
Warranty Policy
Warranty Policy
At WattCycle, we stand behind the quality and performance of our batteries. We offer a comprehensive warranty to ensure your satisfaction with your purchase.
Please read the product manual carefully before installing and using the product, and use the battery correctly under the instructions of the manual.
Warranty Period
WattCycle warrants that the product will be free from defect in workmanship and material to the original consumer purchaser.
The warranty period starts on the date of purchase by the original consumer purchaser.
| LiFePO4 Batteries (>50Ah) | LiFePO4 Batteries (≤50Ah) | Cells / Like New Batteries | LiFePO4 Battery Charger | Accessories | |
| Website | 5+2 Years | 3 Years | 3 Years | 3 Years | 1 Year |
| Amazon | 5+2 Years | 3 Years | 3 Years | 3 Years | 1 Year |
| Temu | 5+2 Years | 3 Years | 3 Years | 3 Years | 1 Year |
| Ebay | 5+2 Years | 3 Years | 3 Years | 3 Years | 1 Year |
Note: Only registered customers can extend the warranty service by 2 years. Final interpretation rights belong to WattCycle.
Question: Will my lithium battery still be covered under warranty after being connected in series or parallel?
Answer: As long as your product meets the warranty conditions and you have registered for the warranty, you will receive the corresponding warranty period. Connecting the batteries in series or parallel (or other normal operations) will not affect your product's warranty duration.
Warranty Statement
Any defects in material, workmanship of your product will be covered after you provide any valid proof of purchase and information including but not limited to:
1. A purchased order number made through WattCycle official stores.
2. Sales invoice or order confirmation email that clearly shows the description of the product, its price, and sales channel.
Note: The limited warranty is restricted to the country of purchase. The warranty will be invalid on the items once they are taken or shipped to other countries.
Exclusions of Warranty
1. Misused, abused, damaged by accident or damaged due to force majeure. (e.g. lightning strikes, tornadoes, hurricanes, etc.);
2. Unauthorized modification, repair, dis-assembly or operation not in accordance with the official instructions or manuals;
3. Lost, stolen or full refunded product;
4. Warranty period expired;
5. The battery model on the warranty certificate does not match the actual item;
6. Product wear and tear through the usage of time.
Procedures for Warranty Claims
We’ll assist to analyze the consumer’s problem within 24 hours, and help solve the problem, restore battery usage, and introduce the optimal use method.
If our product fails to work normally, the consumer assists us in completing all the battery testing, and both parties confirm that the product does have quality problems, we’ll send a new battery replacement to the defective battery after it has been returned to our US warehouse by the pre-paid label we prepared. And the defective battery will be checked and tested by our technical team to analyze the problem.
From the date of purchase and within 6 months, if our products have quality problems and cannot work normally, we can provide replacement or refund services; Within 7 months from the date of purchase to the end of the warranty, if our products have quality problems and cannot work normally, we can provide replacement services.
Any product(s) returned for valid warranty service will be shipped at the expense and risk of us. We will provide a pre-paid label to customers who need to return the products to the designated place at the specified time.
Batteries that have been serviced or replaced under their warranty period do not receive extended warranties. Instead, the serviced/replaced battery(-ies) will abide by the original warranty period issued when first purchased.
Changes to This Policy:
We reserve the right to modify this Warranty Policy at any time. We will post any changes to this policy on our website.
Contact Us:
If you have any questions about our Warranty Policy, please feel free to contact us at service@wattcycle.com.
We encourage you to read this warranty policy carefully. By purchasing a WattCycle battery, you agree to the terms and conditions of this warranty.
【Automatic $50 OFF/PACK】48V (51.2V) 100Ah 3U Server Rack LiFePO4 Ba...
Description
Description
High-Capacity Energy Storage for Demanding Applications:
Power your critical systems with the WattCycle 48V(51.2V) 100Ah Server Rack Battery, a premium lithium iron phosphate (LiFePO4) energy solution designed for reliability, scalability, and long-term performance. Engineered for commercial, industrial, and residential energy storage, this server rack battery integrates cutting-edge technology to deliver seamless power backup, renewable energy storage, and peak load management.
Key Features:
1. High Energy Density & Capacity:
● 48V 100Ah Configuration: Store up to 5.12 kWh of energy in a single unit, ideal for extended backup power or daily cycling in solar/wind systems.
● LiFePO4 Chemistry: Superior safety, thermal stability, and 5,000+ deep cycles at 90% DoD (Depth of Discharge) for a lifespan exceeding 10 years.
2. Server Rack Design for Scalability
● Modular Expandability: Stack multiple units in server rack (or compatible cabinet) to scale from 5.12 kWh to 102.4 kWh+ for growing energy demands.
● Plug-and-Play Integration: Compatible with most inverters (48V systems) and BMS (Battery Management System) communication protocols for effortless setup.
3. Smart Protection & Monitoring
● Advanced BMS: Ensures safety with real-time monitoring of voltage, current, temperature, and state of charge (SOC). Protects against overcharge, over-discharge, short circuits, and thermal runaway.
● Remote Management: Built-in Bluetooth modules (check compatibility) enable remote monitoring via WattCycle App or energy management tools.
4. Industrial-Grade Durability
● Wide Temperature Range: Operates efficiently in -20°C to 65°C (-4°F to 149°F) environments, suitable for harsh conditions.
● Fire-Resistant Housing: Robust, UL-certified enclosure ensures safety and longevity in commercial/industrial settings.
5. Eco-Friendly & Cost-Effective
● Zero Maintenance: No acid leaks, watering, or frequent replacements—reduce operational costs.
● Sustainable Power: Ideal for solar/wind storage, EV charging stations, and off-grid systems to cut carbon footprints.
Applications:
● Data Centers & Telecom: Uninterruptible power supply (UPS) for critical servers and network infrastructure.
● Renewable Energy Storage: Store solar/wind energy for homes, farms, or microgrids.
● Industrial Backup: Power robotics, manufacturing equipment, or emergency lighting.
Why Choose WattCycle?
Our 48V server rack battery combines industry-leading safety, modular flexibility, and plug-and-play simplicity to future-proof your energy needs. Whether you’re building a solar array, securing uptime for critical infrastructure, or transitioning to clean energy, this battery delivers unmatched value and peace of mind.
Upgrade Your Energy Storage Today—Engineered for Tomorrow’s Demands.
(Note: Confirm compatibility with your inverter/rack setup before purchase. Custom configurations available for large-scale projects.)
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Payment & Security
Payment methods
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Space-Saving Rack Mount Battery Backup
Optimize your data center or home energy storage with the WattCycle 48V 100Ah 3U Server Rack Battery. Designed for standard 3U server racks, its slim profile frees up cabinet real estate while delivering full 100Ah capacity and 5.12kWh high energy. Say goodbye to bulky lead-acid modules—this lithium server rack battery backup fits neatly into solar energy storage cabinets for a streamlined setup.
High-Performance Lithium Server Rack Battery
Engineered with EV-grade A+ cells capable of supporting up to 100A charge/discharge currents, this rack-mounted battery backup delivers robust power and exceptional longevity, offering over 5,000 cycles at 90% depth of discharge—tripling the lifespan of traditional lead-acid alternatives. At just 96.5 lbs, it provides a full 102Ah of usable capacity while ensuring reliable energy storage for mission-critical systems. Pair with the WattCycle app via Bluetooth to monitor real-time voltage, current, temperature, and remaining runtime, enabling precise energy management without compromising performance or durability.
Universal Compatibility for Server Rack Solar Battery
Seamlessly integrate your 48V 100Ah 3U battery with leading inverters and solar charge controllers. Built-in CAN/RS232/RS485 protocols ensure plug-and-play communication with Victron, Growatt, GoodWe, and more—no extra wiring is required.
Intuitive LED Indicators & 1C Fast Charging
Forget cryptic displays—our simple row of capacity lights tells you at a glance when you’ve hit 25 %, 50 %, 75 %, or 100 %. And when you need juice fast, the 48 V fast-charge support (1C rate) tops you up quickly, so your off-grid cabin or home energy system is back online in hours, not days.
Rugged Design & Safety Protection
Engineered for demanding environments, this 48V（51.2V） LiFePO4 server rack battery features an IP20, flame-retardant casing and three layers of protection—overcharge, over-discharge, and short-circuit. Operate confidently from –20 °C to 50 °C (–4 °F to 122 °F).
Practical Features & Accessories
A foldable handle design maximizes cabinet space and simplifies installation. At just 96.5 lbs, the unit is easy to maneuver—no heavy-lifting teams are required.
Scalable 48V Rack Mount Lithium Battery Bank
Grow your system as needs change—connect up to 20 units in parallel for nearly 102.4 kWh of expandable capacity whether you need a single 5 kW server rack battery or a parallel 48V 100Ah server rack battery bank, scale effortlessly without swapping hardware. Our plug-and-play parallel cabling system enables capacity upgrades in under 30 minutes.
Professional Application Scenarios
- Data Center Backup: Replace lead-acid with a 51.2V high-voltage platform for cleaner, quieter UPS power.
- Home & Off-Grid Solar: Partner with hybrid inverters and MPPT controllers for green energy storage.
- Material Handling: Support electric forklifts and AGVs with high-rate discharge during peak demand.
- Server Rack battery for RV: our 48V 100Ah server rack battery delivers industrial-grade power in RV and marine applications.
Why Choose WattCycle Over Others?
WattCycle keeps things straightforward: no extra display hardware, just proven EV A+ cells, robust BMS over-current protection, and app-based monitoring. You get a best-in-class 48V 100 Ah server rack battery without gimmicks—just reliable power when you need it.
Tech Specs
| Dimensions | 17.7 X 17.4 X 5.2 inch | 450 X 444 X 133 mm |
| Weight | 96.5 lbs | 43.8 kg |
| Battery System Capacity | 5.12kWh |
| Cell Type | Li-iron (LFP) |
| Cell Capacity | 100Ah |
| Battery Cell Configuration | 1P16S |
| Nominal Voltage | 51.2V |
| Operational Voltage Range | 46.4 ~57.6V |
| Scalability | Max. 12 systems in parallel operation |
| Installation | Floor stand (standard) / Wall mounted (optional) |
| Depth of Discharge | 90% |
| Battery System Charge Current (Recommended) | 50A |
| Battery System Charge Current (Max) | 100A |
| Battery System Discharge Current (Recommended) | 50A |
| Battery System Discharge Current (Max) | 100A |
| Cooling | Natural convention |
| Communication Port | RS232, RS485, CAN |
| Protection Class | IP20 |
| Charging Temperature | 32°F ~ 122°F (0°C ~ 50°C) |
| Discharging Temperature | -4°F ~ 122°F (-20°C ~ 50°C) |
| Humidity | 5%~95% |
| Max. Operating Altitude | 2000m (6,562ft.) |
| Warranty | 5 years |
| Certificates | UL 1973 |
FAQ about WattCycle 48V 100Ah Server Rack Battery
Q1: Does the WattCycle 51.2V Server Rack LiFePO4 Battery’s BMS include low-temperature charging disconnect?
Q1: Does the WattCycle 51.2V Server Rack LiFePO4 Battery’s BMS include low-temperature charging disconnect?
A: Yes.
The in 100 A BMS protects against both low temperature charge and discharge. Charging automatically cuts off below 0 °C ± 4 °C (32 °F ± 7.2 °F), and discharging cuts off below –20 °C ± 4 °C (–4 °F ± 7.2 °F). This prevents cell damage in cold conditions and helps extend overall battery life.
Q2: Do I need a special charger for WattCycle LiFePO4 server rack batteries?
Q2: Do I need a special charger for WattCycle LiFePO4 server rack batteries?
A: For optimal performance, use a dedicated 58.4 V LiFePO4 charger. You also have two alternative charging methods:
Solar + MPPT: Connect photovoltaic panels to an MPPT charge controller sized for a 48 V LiFePO4 bank.
Inverter-Charger: Use an inverter with built-in AC→DC charging set to LiFePO4 parameters.
Q3: How many charge/discharge cycles can I expect?
Q3: How many charge/discharge cycles can I expect?
A: WattCycle 48 V 100 Ah LiFePO4 batteries deliver over 5,000 cycles at 90 % depth-of-discharge—roughly three times the cycle life of typical lead-acid batteries. In real-world terms, that translates to an 10+ year service life under normal use.
Q4: How many cells are inside the 48 V battery?
Q4: How many cells are inside the 48 V battery?
A: There are 16 EV-grade A+ LiFePO4 cells, each 3.2 V nominal. Together they form a 51.2 V system with 100 Ah capacity—perfect for a 5 kW server rack battery application.
Q5: Can I connect these batteries in series or parallel?
Q5: Can I connect these batteries in series or parallel?
A: Parallel only. You may link up to 20 identical WattCycle 48 V 100 Ah units in parallel—creating up to a 48 V 2,000 Ah bank. Do not connect in series. For safe paralleling, ensure all modules are the same model, capacity, and age, and let the BMS manage current balancing.
For details, please read our blog: why can't Mix Different Brands of LiFePO4 Batteries.
Q6: What communications and monitoring options are available?
Q6: What communications and monitoring options are available?
A: Monitor every cell string via Bluetooth (WattCycle app) or through CAN/RS485/RS232 outputs. Real-time voltage, current, temperature, and state-of-charge data let you stay ahead of maintenance and optimize performance.
Q7: Is this battery compatible with my solar inverter?
Q7: Is this battery compatible with my solar inverter?
A: Yes. The WattCycle BMS supports standard inverter protocols (Victron, GoodWe, Growatt, Deye, etc.). Simply select the matching protocol in your inverter’s settings—no additional converters needed.
Q8: How do I maintain my WattCycle rack battery?
Q8: How do I maintain my WattCycle rack battery?
A: LiFePO4 chemistry is maintenance-free—no watering or equalization needed. Just keep terminals clean, avoid extreme temperatures, and follow your inverter’s recommended charge settings. Periodic app checks ensure your system stays healthy.
