BigBattery

BigBattery: LiFePO4 lithium batteries and solar power systems

BigBattery designs and manufactures lithium batteries, including LiFePO4 packs, solar batteries, and complete off-grid solar systems. The company presents itself as a provider of energy storage solutions for homeowners, RV and van users, boaters, golf cart owners, and industrial or commercial fleets. Its catalog is organized into solar batteries, solar inverters, solar kits, mobility batteries, and accessories.

Applications and products

The offering is grouped by end use. For the home, it sells LiFePO4 batteries for grid-tied systems and home backup, with capacities from 5 kWh to 30 kWh. For off-grid installations, it offers batteries for cabins, homes, and ranches. In mobility, it produces batteries for golf carts and utility vehicles, compatible with brands such as Club Car, E-Z-GO, and Yamaha, as well as batteries for RVs, vans, and campers, and for boats, including trolling motors and onboard electronics. It also supplies batteries for industrial equipment such as scissor lifts and sweepers.

The catalog includes off-grid and hybrid inverters from 6 kW to 16 kW, solar kits that combine battery and inverter, and accessories such as chargers, cables, and connectors. Featured products include the 48V EAGLE 2 battery kit for golf carts, the NEXUS 2 system with APEX 6.5K inverter at 16 kWh for off-grid installations, and the ETHOS system with EG4 FLEXBOSS18 inverter for grid-tied home backup.

LiFePO4 chemistry and compatibility

The company builds nearly all its batteries with LiFePO4 (lithium iron phosphate) chemistry, which it describes as the most thermally stable lithium option, with a lower risk of overheating than NMC batteries. According to the company, this chemistry offers more than 4,000 charge cycles and allows each battery to be backed by a 10- to 12-year warranty.

Most of its batteries use an open-communication BMS designed for universal compatibility, so they work with inverters and charge controllers from brands such as Victron, Growatt, and Schneider without proprietary lockouts. Grid-tied, UL-certified systems such as NEXUS are designed to integrate directly with certain hybrid inverters.

Certifications and manufacturing

BigBattery states that its products are ISO 9001 certified and CEC-listed for grid-tied solar systems. The company states that design and engineering are done in the United States, specifically in Texas. These certifications, according to the company, confirm manufacturing quality standards and, in the case of CEC-listed systems, can help qualify for state and utility solar incentive programs.

Direct sales and support

The business model is direct-to-consumer sales, with no middlemen or dealer markups. The company offers U.S.-based support via phone, chat, and email, and provides a free solar battery sizing calculator that recommends configurations based on daily energy usage. The website shows a 4.6-star rating based on more than 350 verified Google reviews, and the company states it has served more than 50,000 Americans since 2011.

Warranty and customer service

The warranty on BigBattery lithium batteries is 10 to 12 years, which the company describes as the longest in the industry, with more than 4,000 charge cycles. The company also mentions that its U.S.-based technical support team answers by phone and offers consultations with no obligation to purchase.

Location and contact

400 Maple St, Commerce, TX 75428 · Phone: 1-818-280-3091 · Email: support@bigbattery.com · Hours: Monday to Friday 6:30 AM to 7 PM