JM 15 kwh Lifepo4 Battery 48V Solar Battery Backup for Home

2026-04-22T00:01:24-07:00

Type: JM-M-51.2V 300AH
Price: 1825.00

Product Feature：

Flexible Installation
Supports both movable and wall-mounted installation methods, suitable for various residential/commercial scenarios.

Sleek Design
Features a light bar appearance, which facilitates easy power level checking.

Customization Services
Offers touchscreen logo and multi-language system customization (OEM/ODM mode with low minimum order quantity (MOQ)).

Intelligent Monitoring
Equipped with built-in WiFi, Bluetooth, and a BMS (Battery Management System) for real-time monitoring of State of Charge (SOC) and operating status.

Ultra-Long Lifespan
Boasts 8000 deep charge-discharge cycles, with about 10 years of normal service life.

Capacity Options
Available in two specifications: 15kWh (51.2V 300Ah) and 16kWh (51.2V 314Ah), to meet diverse power consumption needs.

Warranty Guarantee
Comes with a 10-year official warranty, including free repair/replacement for faults, ensuring worry-free use

Product Parameters：

Model | JM-51.2V 300Ah-LED
Warranty | 10 years
Anode Material | LFP
Chargeable | Yes
Application | Solar energy storage battery,Home backup power supply,Emergency power supply
Cycle Number | 8000 Cycles
Brand Name | JM or Customzied
Certification | MSDS, UN38.3,CE, ROHS
Product Dimension | 520*287*700mm
Coummunication Protocol | CAN2.0/RS485(customized available)
LCD | (customized available)
OEM/ODM | (customized available)

Product Picture：

15kwh lithium battery size：

Company Profile：

Common Product Issues：

What can a 15kWh lithium battery power in a typical home?

A 15kWh lithium battery provides substantial backup power for both grid-tied and off-grid homes. On average, a 15kWh capacity can power essential household appliances—such as a refrigerator, Wi-Fi router, lights, TV, and laptops—for a full 24 hours during a blackout. If you are running high-draw appliances like air conditioners or well pumps, it serves as an excellent overnight energy bridge until your solar panels begin recharging the system the next morning.

Is this 51.2V 300Ah battery compatible with my current solar inverter?

Yes! Our 51.2V 300Ah battery is designed for maximum compatibility. The built-in communication ports interface seamlessly with most leading Tier-1 inverter brands on the market, including Victron, Growatt, Deye, Luxpower, and Voltronic. This makes it a perfect plug-and-play solution for upgrading your existing home energy storage system.

How does the built-in "Smart BMS" protect the battery?

The Smart BMS (Battery Management System) acts as the brain of the battery. It constantly monitors cell voltage, current, and temperature in real-time. If it detects anomalies like overcharging, deep discharging, short circuits, or extreme temperature fluctuations, the Smart BMS will automatically adjust or disconnect the system to prevent damage. This ensures maximum safety for your home and significantly extends the lifespan of your LiFePO4 battery.

How long will the JM 15kWh LiFePO4 battery last?

Built with premium Lithium Iron Phosphate (LiFePO4) cells, this battery boasts an impressive cycle life of over 6,000 cycles at 80% Depth of Discharge (DoD). For the average user cycling the battery once a day, this translates to a lifespan of 10 to 15 years. Compared to traditional lead-acid batteries, the JM 15kWh battery price offers a far superior long-term return on investment (ROI) due to its zero-maintenance design and decade-long reliability.

Can I connect multiple 51.2V 300Ah batteries in parallel to increase my storage?

Absolutely. If your energy needs grow, your storage can too. You can safely connect up to 15 units of these 51.2V 300Ah batteries in parallel. This allows you to scale your system from a standard 15kWh setup up to a massive 225kWh commercial-grade power bank, making it ideal for large off-grid properties, agricultural setups, or small businesses.

How does this solar battery perform in extreme regional climates?

The JM 15kWh battery is engineered for global resilience. Whether you are building an off-grid cabin in the extreme summer heat of Australia or the US Sunbelt (Texas, California, Florida), or need reliable winter backup power in colder regions like Northern Europe, the UK, or Canada, the Smart BMS features thermal regulation limits to ensure safe operation. It operates efficiently in discharging temperatures ranging from -4°F to 140°F (-20°C to 60°C). Note: For optimal charging in sub-zero climates, we recommend indoor or insulated installation.

Is this battery suitable for RVs, camper vans, or marine use?

While primarily designed for residential solar battery backup, the robust, vibration-resistant casing and high energy density make this 51.2V system an excellent choice for large motorhomes, luxury RVs, and marine vessels that require a 48V/51.2V architecture.