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Meet the 48V ETHOS & RHINO 2, our first UL9540-certified, all-weather, power storage solutions, capable of providing efficient, reliable power delivery for every home in America, and certified for all climates. With advanced features, and backed by our 10-year warranty, you can ensure your home is powered and prepared, while saving on utilities each month, all with these cutting-edge ESS solutions, available now!

These next-gen 36V & 72V batteries are a game-changer when it comes to your golf carts, utility vehicles, & equipment, packing Tier 1 LiFePO4 cells into an IP65-rated, vibration-resistant casing. The RAPTOR 2s are guaranteed to increase range & acceleration while reducing charge times & your total cart weight, allowing you to carry heavier loads without issue & stay out of the charging bay. Take your equipment to the next level when you upgrade with all-new RAPTOR 2s today!

RVs & Camper Vans

Off-Grid Power Systems



Now offered

Now offered through


Configurations up to 30kWh

Equip your home or cabin with an indoor ETHOS system and take back control of your power! Say goodbye to rolling blackouts & grid instability and say hello to safe, reliable power, lower electric bills, & energy independence. For the UL certification indoor configuration can be from 10 – 30kWh.

  • 48V ETHOS 10.2KWH

    2x Battery Modules

    • 6kW 10.2kWh ETHOS Off-Grid System

      2x Battery Modules

      • 48V ETHOS 15.3KWH

        3x Battery Modules

        • 12kW 10.2kWh ETHOS System (ESS)

          2x Battery Modules + 12kW (18kPV) inverter

          FREE SHIPPINGK0954

          Unmatched Energy Storage.

          BigBattery off-grid lithium battery banks are made from top-tier LiFePO4 cells for maximum energy efficiency. Our solar line-up includes the most affordable price per kWh in energy storage solutions. Lithium batteries can also store about 50% more energy than lead-acid batteries! Power your off-grid dream with BigBattery today!

          • 6kW 14.3kWh RHINO 2 Off-Grid System

            LiFePO4 - 280Ah - 14.3kWh

            FREE SHIPPINGK0724
            • 12kW 28.6kWh RHINO 2 Off-Grid System

              LiFePO4 - 560Ah - 28.6kWh

              FREE SHIPPINGK0725
              • 24V 2X HUSKY 2 Victron Kit

                LiFePO4 - 400Ah - 10.24kWh

                $5,391 BACKORDERED UNTIL MAY 13TH
                • 48V RHINO INVERTER KIT

                  LiFePO4 - 276Ah - 14kWh


                  Faster. Further. Lighter.

                  Golf carts are among the many vehicles that reap massive benefits from lithium batteries. Our lithium solutions will give you less weight, more power, shorter charging intervals, and zero maintenance over lead-acid batteries! This also means you can enjoy more mileage on a single charge with stronger acceleration up hills. Upgrade your golf cart to see the benefits for yourself!

                  • 36V RAPTOR 2

                    3.84kWh LiFePO4

                    • 48V FALCON ELITE KIT

                      LiFePO4 - 61Ah - 3.1kWh

                      • 48V 2X EAGLE 2 KIT

                        LiFePO4 - 64Ah - 3.26kWh

                        • 48V 1X HUSKY 2 KIT

                          LiFePO4 - 100Ah - 5.12kWh

                          $2,315 BACKORDERED UNTIL APRIL 23RD

                          BUILT WITH THE SAFEST LFP CELLS

                          BUILT WITH THE SAFEST LFP CELLS

                          TOP-TIER QUALITY

                          TOP-TIER QUALITY

                          Power Your Adventures.

                          BigBattery lithium RV battery packs have a track record of being exceptionally reliable while guaranteeing a worry-free experience. Our advanced lithium RV & Van-life solutions reduce generator time and minimize charging periods. We also offer our RV batteries with inverters, so you have a one-stop shop for compatible accessories.

                          • 24V 2X EAGLE 2 KIT

                            LiFePO4 - 128Ah - 3.26kWh

                            • 24V 1X HUSKY 2 KIT

                              LiFePO4 - 200Ah - 5.12kWh

                              $2,335 BACKORDERED UNTIL MAY 13TH
                              • 48V 1X HUSKY 2 KIT

                                LiFePO4 - 100Ah - 5.12kWh

                                $2,315 BACKORDERED UNTIL APRIL 23RD
                                • 48V 1x MUSTANG Kit

                                  LiFePO4 - 139Ah - 7kWh


                                  More Power. More Savings.

                                  BigBattery industrial lithium battery packs were designed as a plug-and-play option for electric commercial and industrial vehicles currently using lead-acid batteries. By switching to BigBattery lithium, your vehicle will gain more power and have less weight with increased operational hours. Your equipment will also have increased charging speed, zero maintenance, and no “cool down” period before recharging.

                                  • 24V 2X EAGLE 2 KIT

                                    LiFePO4 - 128Ah - 3.26kWh

                                    • 36V GATOR MAX KIT

                                      LiFePO4 - 120Ah - 5kWh

                                      • 48V 2X EAGLE 2 KIT

                                        LiFePO4 - 64Ah - 3.26kWh

                                        • 48V 2X FALCON ELITE KIT

                                          LiFePO4 - 122Ah - 6.12kWh


                                          Complete Your Power System.

                                          Ensure your power system is complete and optimized for your applications and energy needs. From 2000W to 12000W, we offer a wide range of cutting-edge inverters designed for battery systems large and small, capable of keeping you powered and prepared, with variable working modes, smart load controls, seamless input switching, and other advanced features.

                                          • growatt

                                            Growatt 3K Inverter

                                            SPF 3000TL LVM-ES

                                            • On Sale!

                                              Aims 2000 Watt Pure Sine Inverter Charger

                                              with Transfer Switch

                                              • LUXPOWER 6K Inverter

                                                LXP Hybrid 6K

                                                FREE SHIPPINGINV021
                                                • LUXPower 12K Inverter

                                                  LXP-LB-US 12k

                                                  FREE SHIPPINGINV020

                                                  Shipping Saver Program

                                                  Buy (4X) Of Any BigBattery Pack & Receive Free Shipping!

                                                  Shipping BigBatteries Can Be Expensive, We Want To Help! Buy (4) Units And We’ll Pay All Shipping Costs To Your Door!

                                                  Shipping BigBatteries Can Be Expensive, We Want To Help! Buy (4) Units And We’ll Pay All Shipping Costs To Your Door!

                                                  FREE SHIPPING

                                                  Online Support

                                                  LiveChat, Call & Email

                                                  10 Year Warranty

                                                  Full Battery Coverage

                                                  Safest Batteries

                                                  Reliable: LiFePO4

                                                  Fastest Shipping

                                                  Manufacturing In USA

                                                  Why Switch to Lithium?

                                                  Longer Life, No Maintenance, and Faster Charging are just a few of the advantages lithium has over lead-acid batteries. Making it an exceptional return on your investment for years to come.

                                                  SERVICE LIFE: Lithium batteries last 3-4 times longer than lead-acid batteries without losing effectiveness over time.

                                                  LITHIUM BATTERY
                                                  LEAD ACID BATTERY

                                                  Lithium Battery Packs

                                                  BigBattery is your one-stop shop for a wide assortment of large lithium battery packs. Our batteries power everything, including homes, RVs, campers, golf carts, forklifts, and other machinery. We’re proud to be the largest supplier of new cells batteries in the US. Our core purpose here at BigBattery is to promote the mass adoption of renewable energy solutions.

                                                  There are many reasons why lithium battery packs are in a class of their own. LiFePO4 batteries can be recharged hundreds of times without the need for maintenance. They also tend to have a higher energy density and voltage capacity with a lower discharge rate than their competitors. This makes for better power and efficiency, as a single cell has longer charge retention than other battery types.
                                                  BigBattery offers the best large lithium battery packs for sale online.

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