Independent Creator Review
See the WT5100 teardown and measured 106Ah capacity test.
UL9540A Wirentech 48V (51.2V) 100Ah Server Rack Lithium Battery
[Keep Essential Power Running] — Store 5.12kWh of energy and deliver up to 5.12kW continuously for dependable home backup, solar storage, or off-grid living.
[Protection That Works in the Background] — The smart BMS continuously monitors voltage, current, and temperature while guarding against overcharge, over-discharge, and short circuit.
[Designed to Work with Your Energy System] — CAN and RS485 communication make it easier to connect with compatible inverters and monitor battery performance.
[Start with One. Expand When You Need More.] — Add batteries over time and connect up to 63 units in parallel, without replacing your original system.
[Built for Years of Dependable Use] — Get 6000+ cycles, documented UL 1973 and UL 9540A compliance, and a 10-year warranty for greater confidence in your investment.
$849.99
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Services & Benefits
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.
View warranty policyPairs well with
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UL9540A Wirentech 48V (51.2V) 100Ah Server Rack Lithium Battery
1 Pack
$849.99
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UL Certified for WT5100
UL1973, UL9540A Listed for safety, compliance, and reliable energy storage performance in residential and commercial applications.
Wide Inverter Compatibility
The Wirentech WT5100 supports CAN and RS485 communication with the Pylontech protocol by default, enabling integration with a wide range of compatible inverter systems. Confirm the exact inverter model, firmware, and protocol before installation.
Advanced Battery Protection
Built for dependable home energy storage and solar backup, the Wirentech WT5100 combines 51.2V 100Ah capacity, Grade A LiFePO4 cells, and a smart 100A BMS. Multiple safety protections and automatic cell balancing support stable, long-lasting performance.
Expand Up to 63 Units
Built for scalable deployment, the WT5100 rack battery system supports up to 63 units in parallel, allowing total system capacity to expand up to 315kWh. This makes it a strong choice for users looking for an expandable home energy storage battery or a larger modular battery solution.
Flexible Installation Options
Install the WT5100 horizontally or vertically to fit different layouts while making better use of available space.
Smarter Home Energy
Store solar energy and keep essential appliances running during outages with the WT5100. Its dependable backup power and expandable design make it easy to build a home energy system that grows with your needs.
Three Charging Options
The WT5100 51.2V 100Ah rack battery supports multiple charging methods for greater flexibility, including LiFePO4 charger charging, solar panel charging, and generator-assisted charging. This makes it easier to deploy in different home backup battery and solar storage battery scenarios.
Why Choose WT5100
The WT5100 combines safety, lightweight construction, long service life, scalable expansion, and dependable support in one 51.2V 100Ah rack battery solution. It is designed for customers who need a practical and reliable LiFePO4 rack battery for home energy storage and backup power use.
Power Every Application
Built for on-grid energy storage, off-grid power, telecom base stations, and data centers, the WT5100 delivers dependable power across residential and commercial applications.
What’s Included
The WT5100 battery module comes with the key accessories needed for standard rack mount installation, including the positive cable, negative cable, and slave parallel communication line. Optional communication accessories may be added depending on the inverter setup and system requirements.
Product Documents
View the WT5100 user manual, installation guide, safety certifications and compliance documents.
G
They were small enough to fit in my space available in my RV and still supply plenty of power
J
Grabbed four of these for my off-grid cabin. Packing was great, delivery was fast, and the LCD screen with physical buttons is super easy to use.
J
After 2 weeks no problems. I would recommend it.
P
Have 6 eg4 lifepower batteries. Bought 6 of these and they run seamlessly with eg4. Couldn't be happier.
M
Installation was straightforward and the battery communicates well with my inverter after selecting the correct protocol. Capacity has been close to what I expected and it runs my overnight loads without a problem. The manual could explain the communication settings in more detail, otherwise I am happy with it.
J
Battery arrived on time, in good condition, at a good price, and most important it works as described. Also when I contacted Wirentech with a question they were quick to respond with a clear answer.
FAQs
What is the WT5100 used for?
It is designed for home energy storage, backup power, and solar applications.
How much energy does it provide?
The WT5100 delivers 5.12kWh with a 51.2V 100Ah configuration.
Is the WT5100 certified?
Yes. It is backed by UL1973, UL9540A, CEC, and CB certifications.
Can the system be expanded?
Yes. It supports up to 63 units in parallel, expanding up to 315kWh.
Does it include a BMS?
Yes. It features a built-in BMS for safer and more stable operation.
What warranty is included?
The WT5100 comes with a 10-year warranty.