Wirentech 48V (51.2V) 100Ah Self-Heating Server Rack Lithium Battery
[Reliable Power in Cold Weather] — The built-in automatic self-heating system warms the cells in low temperatures, helping maintain dependable charging performance during winter.
[5.12kWh of Dependable Backup] — Store 5.12kWh of energy and deliver up to 5.12kW continuously for home backup, solar storage, and off-grid power.
[Smart Protection, Working 24/7] — The integrated 100A smart BMS monitors voltage, current, and temperature while protecting against overcharge, over-discharge, overcurrent, and short circuit.
[Connect and Expand with Ease] — CAN and RS485 communication support compatible inverter integration, while expansion of up to 63 batteries in parallel lets your system grow with your energy needs.
[Built for Long-Term Confidence] — Premium LiFePO4 cells deliver 6000+ cycles, dependable everyday performance, and a 10-year warranty for lasting peace of mind.
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Free Shipping
Free shipping is available on eligible products and destinations when shown on the product page or at checkout. Remote-area, freight, customs, or special-handling charges may apply where applicable.
View shipping policy30-Day Return Window
Products purchased directly from Wirentech may be eligible for return within 30 days of delivery. Items must meet the return conditions, and prior authorization is required. Return shipping or other fees may apply to non-quality-related returns.
View return policyShips from Our US Warehouse
Eligible in-stock orders ship from our CA warehouse. Most orders are processed within 1-2 business days and typically arrive within 3-7 business days after shipment. Delivery times are estimates and may vary by destination, carrier schedule, weather, and freight requirements.
View delivery details10-Year Warranty
Eligible Wirentech lithium batteries are backed by a 10-year limited warranty covering verified defects in materials or workmanship under normal use. Warranty eligibility and available remedies are subject to the product condition, proof of purchase, installation details, and technical review.
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Wirentech 48V (51.2V) 100Ah Self-Heating Server Rack Lithium Battery
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Built for Cold Weather
Built-in low-temperature protection and automatic self-heating help support dependable battery charging in cold environments, making the WT5100 a practical winter-ready energy storage solution.
Smart Battery Protection
Built with Grade A LiFePO4 cells and an integrated 100A smart BMS, this 51.2V 100Ah rack battery provides overcharge, over-discharge, overcurrent, short-circuit, temperature, and cell-balancing protection.
Expand Up to 63 Units
Start with one battery and expand to up to 63 units in parallel, creating a modular energy storage system with a maximum capacity of 315kWh.
Flexible Installation Options
The WT5100 rack-mounted battery system is designed for flexible placement and can be installed horizontally or vertically based on your project layout. This makes the battery easier to integrate into different home energy storage battery setups while improving installation flexibility and space efficiency.
Clean Home Energy
The WT5100 provides 5.12kWh of LiFePO4 energy storage for essential household loads, daily solar energy use, and dependable residential backup power.
Multiple Charging Options
Recharge the WT5100 using a compatible 58.4V LiFePO4 charger, solar panels with a 48V MPPT controller, or a generator-assisted DC-to-DC charging setup.
What Makes Battery Unique
Built with advanced BMS protection, long cycle life, lightweight design, and scalable expansion up to 63 units, WT5100 delivers safe, durable, and high-performance energy storage for home, RV, and off-grid systems.
Versatile Energy Applications
A flexible 51.2V energy storage battery for on-grid systems, off-grid solar power, telecom base stations, and data center backup applications.
What’s Included
The WT5100 measures 20 × 17.7 × 5.5 inches and includes positive and negative power cables plus a slave parallel communication cable for rack-mounted installation.
FAQs
Can the battery charge in cold weather?
Yes. The self-heating system allows the battery to warm up automatically before charging, ensuring safe operation in low-temperature environments such as winter RV use or off-grid installations.
What is the advantage of the self-heating function?
It prevents charging issues in cold climates by automatically maintaining the battery at a safe operating temperature, improving reliability and extending system usability in winter conditions.
Can I expand the system with multiple batteries?
Yes. The WT5100 supports up to 63 units in parallel, allowing flexible expansion from home backup systems to large-scale energy storage setups.
Is the battery compatible with my inverter?
The WT5100 is compatible with most 48V inverter systems. However, compatibility depends on inverter settings and voltage range, so we recommend checking your inverter specifications before installation.
What is the cycle life of this battery?
The WT5100 is designed for over 6,000 cycles under standard usage conditions, making it suitable for long-term residential and commercial energy storage applications.
Does the battery require maintenance?
No. The LiFePO4 chemistry combined with a smart BMS ensures a maintenance-free operation with built-in protection for daily use.