• 12-Year Battery Warranty 12-Year Battery Warranty

  • ISO 9001 Certified ISO 9001 Certified

  • CEC Listed Systems

    CEC Listed Systems CEC Listed Systems

  • Assembled In Texas Assembled In Texas

  • 4.6
    Google Rating (350+ Reviews)

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What Are You Powering?

Home solar and backup
Home Solar & Backup Grid-Tied | UL-Certified
Home Solar & Backup BigBattery solar LiFePO4 batteries deliver premium, high-performance energy storage for residential grid-tied systems engineered for reliability, longevity, and clean, efficient power for your home.
Off-grid power
Off-Grid Power Cabin | Home | Ranch
Off-Grid Power BigBattery LiFePO4 batteries for off-grid solar deliver reliable and long-lasting energy storage for true energy independence.
Golf carts and utility
Golf Carts & Utility Club Car | EZGO | Yamaha
Golf Carts & Utility BigBattery golf cart batteries are engineered to increase performance, run times, faster charging, and reliable power with top American brands like Club Car, E-Z-GO, Yamaha & more.
RV, van and camper
RV, Van & Camper Class A, B, C & Van Life
RV, Van & Camper BigBattery lithium RV batteries are lightweight, fast-charging, and built for homes that roam.
Marine and boats
Marine & Boats Trolling | Sail | Yacht
Marine & Boats BigBattery lithium batteries deliver deep-cycle performance and high energy density—ideal for trolling motors and onboard electronics.
Industrial and commercial
Industrial & Commercial Lifts | Sweepers | C&I
Industrial & Commercial BigBattery lithium batteries for industrial equipment deliver long-lasting power ideal for scissor lift fleets, floor sweepers and C&I.

Best Sellers

Golf Cart
48V 2X EAGLE 2 KIT

48V 2X EAGLE 2 KIT

LiFePO4 - 64Ah - 3.26kWh

Starting at $1,645

or $69/mo

View Details
Grid-Tied
1x Nexus + 1x APEX 6.5K

1x Nexus + 1x APEX 6.5K

Starting at $4,535

or $189/mo

View Details
Off-Grid
1x  FlexBOSS18 +  2x  ETHOS

1x FlexBOSS18 + 2x ETHOS

Starting at $6,055

or $252/mo

View Details

Customer reviews

Based on 350+ verified Google Reviews

  • My first warranty interaction with BigBattery was unexpectedly positive. I have had awful experiences in the past getting solar equipment warranty replacements from other companies. My inverter failed and I was worried about warranty replacement of an extremely heavy(165lb) inverter. Dylan at BB helped me through the entire process, description, diagnosis and replacement procedures. I was very disappointed to find out my inverter was no longer available. Dylan made me aware of this and got approval for what may be the most cost effective and modular inverters(EG4 6000xp’s). I am grateful that Dylan helped get me back off grid. Thank You Dylan and the BigBattery team for making a bad situation into positive encounter!
    — Dustin McGuire Verified
  • I called and asked questions they had great tech help and customer service. I ended up ordering a 48 volt battery pack for my golf cart and water resistant charger kit. Was an awesome price and even better product. I have been super happy with the battery pack and not having to constantly add water to the old lead acid batteries.
    — Monty Nash Verified
  • I recently installed a new system using 16 of the new BigBattery ETHOS modules and it has been working PERFECTLY... Installing the modules and controller was a breeze as everything is plug and play.
    — David Mahlmeister Verified

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