48V 100Ah LiFePO4 Battery, 5kWh Solar Lithium Ion Battery 48V 100Ah, Server Rack Batteries, Residential 5kWh Lithium Battery Energy Storage

 Universal Inverter Synchronization & Communication

Compatibility is the most common “headache” in solar installations. We’ve solved that by ensuring our BMS speaks the same language as the world’s leading power electronics.

Wide Compatibility: Our batteries feature native synchronization with Victron, Growatt, Deye, Solark, Luxpower, and Schneider.

Dual Protocol Support: Equipped with both RS485 and CAN bus interfaces, the battery provides real-time data to your inverter, ensuring the most accurate charging profiles possible.

Plug-and-Play Integration: With pre-configured communication protocols, most professional installers can have the entire rack system wired and talking to the inverter in under 30 minutes.

 Self-Heating Technology for Extreme Climates （Optional）

Standard lithium batteries often struggle—or even fail—when the temperature drops. Our advanced thermal management ensures your power stays on, regardless of the weather.

 Internal Heating Feature: Our integrated self-heating tech allows for safe charging even at temperatures as low as -25℃. The BMS uses a small portion of incoming power to warm the cells before allowing the charge to begin.

 Lower Total Cost of Ownership (TCO): While the upfront cost is higher than lead-acid, the cost-per-cycle is about 70% lower over the battery’s life.

 Zero Maintenance: No water refilling, no venting required, and no acid leaks—ever.

 High Efficiency: With a 98% round-trip efficiency, you lose almost no energy when moving power in and out of the battery.

 Lightweight Power: One 5kWh LFP module weighs about 45kg, making it 60% lighter than a lead-acid bank of the same capacity.

 Rapid ROI: By storing cheap solar energy and avoiding peak grid prices, most users see a return on investment within 3 to 5 years.

 Safety First: LFP is the safest lithium chemistry on the market; it’s non-toxic and doesn’t suffer from “thermal runaway.”

 Future-Proof Energy: As your power needs grow, you can just buy another module and “slap it in the rack.”

This battery fits many real-world storage needs:

For residential solar storage, it helps homeowners store daytime solar energy for use at night, increasing self-consumption and reducing waste.

For home backup power, it supports critical loads during outages and provides stable power without depending entirely on the grid.

For server rack battery systems, it offers a neat and efficient power source for IT rooms, telecom stations, and backup cabinets.

For small commercial energy storage, it helps shops, offices, and service sites reduce peak demand costs and improve energy management.

For off-grid and hybrid solar systems, it provides stable storage in areas where grid power is weak, unstable, or unavailable.

For UPS-style backup projects, it offers extra protection for sensitive equipment that cannot afford sudden shutdowns.

For global energy projects, this battery has been developed with real-world deployment in mind. Drawing on more than 10 years of manufacturing experience, Bonnen Battery has optimized its BMS logic to better handle grid instability, voltage fluctuation, and diverse climate conditions across residential solar and telecom site applications.

What exactly is a 48V 100Ah LiFePO4 battery?

It’s a 5.12kWh rechargeable battery pack made of Lithium Iron Phosphate. Think of it as a giant, super-safe power bank that runs your home appliances.

How long does a 5kWh solar lithium battery last?

If you use it every single day, it’ll last about 10 to 15 years. It’s rated for 6,000+ cycles before it even starts to lose significant capacity.

Can I use this battery with my existing inverter?

Most likely, yes. Our batteries use CAN and RS485 protocols to talk to 95% of the hybrid inverters on the market.

Is it safe to keep a server rack battery inside my house?

Totally. Unlike NCM batteries (found in some EVs), LiFePO4 doesn’t catch fire. Plus, there are no fumes, so it’s safe for closets or garages.

How many 48V 100Ah batteries do I need to run a whole house?

For a standard home, 2 to 4 units (10-20kWh) is usually the “sweet spot” to get through the night comfortably.

What’s the difference between 48V and 51.2V?

They’re basically the same thing. 48V is the “nominal” label, but because LFP cells are 3.2V, a 16-cell pack is technically 51.2V.

Do I need a special charger for LFP?

Yes, you need a charger or inverter with a Lithium profile to ensure the BMS stays happy and the cells stay balanced.

Can I mix Bonnen batteries with other brands?

We don’t recommend it. Mixing different BMS logic or cell ages can lead to efficiency loss. It’s best to stick to one brand in a parallel bank.

What happens if the battery gets too cold?

The BMS will stop the battery from charging if it’s below freezing ($0^\circ C$) to protect the cells. It can still discharge (give power) in colder temps, though.

How much does a 5kWh lithium battery weigh?

Ours weighs about 44kg to 48kg (around 100 lbs). It’s heavy, but two people can easily slide it into a rack.

Does the 100Ah capacity mean I get 100 amps for one hour?

Exactly. Or you could pull 10 amps for 10 hours. It’s a measure of the total “fuel” in the tank.

Is it better to wall-mount or rack-mount?

Server rack batteries are more versatile. If you move or want to expand, the rack system is much easier to manage than a heavy wall-mounted unit.

What is “Depth of Discharge” (DoD)?

DoD is how much of the battery you can actually use. You can safely use 95% of an LFP battery, whereas you can only use 50% of a lead-acid battery without damaging it.

Can I run an Air Conditioner with this?

Yes. A single 48V 100Ah battery can handle the “surge” of an AC unit starting up, but having two in parallel is better for heavy loads.

How do I maintain the battery?

Just keep it clean and check the cable connections once a year. The internal electronics handle everything else automatically.

Why is Bonnen Battery better than cheap options on Amazon?

We are a direct manufacturer. We use Grade A cells, provide a real warranty, and offer technical support that actually knows how batteries work.

Is this 48V 100Ah battery compatible with my Victron system?

Yes, it features native CAN/RS485 communication specifically tested for Victron and Sol-Ark inverters.

What is the actual lifespan if used for daily solar cycling?

Our engineering team utilizes precision-cell balancing algorithms to ensure that every 5.12kWh module maintains peak capacity throughout its 6,000-cycle life. With 6,000+ cycles at 80% DoD, it provides 10 to 15 years of reliable service.

How Many 5kWh Batteries Do I Need?

Choosing the right capacity is critical for system longevity and ROI.

The Calculation: For an average modern home consuming roughly 30kWh per day, we recommend a bank of 2 to 4 units. This provides 10–20kWh of storage, which is the “sweet spot” for balancing overnight usage and emergency backup.

The 95% DoD Advantage: Unlike lead-acid batteries, which you can only discharge to 50% without damage, our LFP modules support 95% Depth of Discharge (DoD). You get to use nearly every amp-hour you paid for without compromising the battery’s health.