Lithium Battery Supply sells BigBattery products under an active reseller agreement. BigBattery is a U.S.-based lithium battery manufacturer specializing in modular LiFePO4 energy storage systems for residential solar, commercial applications, and off-grid power independence. Our reseller credentials are on file with BigBattery.

All BigBattery products sold through our store are genuine BigBattery systems shipped directly from BigBattery's U.S. warehouses and covered by BigBattery's 10-year manufacturer warranty. Warranty terms vary by model, please check each individual product page for specific coverage details.

BIGBATTERY FEATURES

BigBattery manufactures its energy storage systems with:

• 10-year manufacturer warranty from BigBattery
• Modular design, scalable for residential, commercial, and off-grid use
• Built-in Battery Management System (BMS) with cell balancing and protection
• LiFePO4 chemistry stable, safe, and long-lasting
• Designed for easy repair, maintenance, and future upgrade
• Compatible with most major solar inverters and charge controllers
• UL-listed components and safety certifications

WHY BIGBATTERY?

BigBattery builds modular energy storage systems designed to grow with your needs. Whether you are powering a home solar setup, a commercial facility, or building an off-grid system from scratch, BigBattery's scalable architecture means you can start with what you need today and expand over time. Their focus on repairability and long service life makes them a practical choice for serious energy storage applications.

APPLICATIONS

• Residential solar energy storage pair with home solar systems
• Off-grid cabins, tiny homes, and remote properties
• Commercial and industrial backup power
• RV and van builds requiring high-capacity storage
• Marine applications requiring large energy reserves

NEED HELP CHOOSING?

Sizing an energy storage system can be complex. Our team can help you calculate the right capacity, voltage, and configuration for your specific application. Call us at +1 (786) 321-3526 or email sales@lithiumbatterysupply.com. Mon–Fri 9AM–6PM EST.

Shop BigBattery systems below. All products include BigBattery's full manufacturer warranty and ship free to the 48 contiguous United States. Returns accepted within 30 days, see our Return Policy for details.