Skip to content
Enjoy Free USA Shipping On All Orders
Enjoy Free USA Shipping On All Orders

Batteries

Learn more about batteries

Fuel your energy independence with high-performance batteries engineered for solar, off-grid, RV, and emergency power systems. Whether you're storing energy from solar panels or building a backup power solution, EcoGridSupply batteries deliver long-lasting reliability, deep cycling capability, and scalable performance for every application.

How EcoGridSupply Batteries Work

Batteries are the heart of any off-grid or hybrid power system—storing energy for use when the sun isn’t shining or the grid goes down. At EcoGridSupply, we offer deep-cycle lithium and AGM batteries designed to provide consistent, stable power over thousands of cycles. These batteries integrate seamlessly with solar charge controllers, inverters, and generators, creating a balanced system built to last.

Choosing the Right Battery Capacity for Your System

Selecting the right battery setup is essential for maximizing uptime and minimizing maintenance.

  • 100Ah–200Ah Batteries: Great for RVs, vans, boats, and mobile setups.
  • 300Ah–600Ah Batteries: Ideal for cabins, tiny homes, or medium-scale solar systems.
  • 1000Ah+ Banks: Built for whole-home systems, off-grid living, and commercial-grade backup power.

Use our system specs or reach out to our expert support team for help sizing your bank based on your daily energy consumption, inverter wattage, and autonomy needs (how long you want to run without sun or grid).

Why Choose EcoGridSupply Batteries

At EcoGrid Supply, every battery is handpicked for off-grid durability, energy efficiency, and clean power output.

  • Expert-curated brands tested for real-world performance
  • Industry-leading warranties and technical support
  • Fast, reliable shipping across North America
  • Backed by our commitment to renewable energy and sustainable living

Build your energy system with confidence—EcoGridSupply batteries are built for the long run.

Filters

$
$
$2,497.99 - $2,497.99
$2,497.99
$2,497.99 - $2,497.99
$2,497.99

BLUETTI 2x B300K Expansion Batteries for Apex 300 - 5,529.6Wh

Bluetti

BLUETTI 2× B300K Expansion Batteries (2,764.8Wh Each) | Apex 300 Compatible | Scalable Backup Power | LiFePO₄ Double the Backup. Perfect for Apex 3...

View full details
$2,497.99 - $2,497.99
$2,497.99
$2,497.99 - $2,497.99
$2,497.99
$1,898.99 - $1,898.99
$1,898.99
$1,898.99 - $1,898.99
$1,898.99

BLUETTI B500K 5,120Wh Expansion Battery for AC300 / AC200L

Bluetti

BLUETTI B500K 5.12kWh Expansion Battery | AC300 / AC200L Compatible | Scalable to 100kWh | LiFePO₄ Backup Power Expandable Power. Built for AC300 a...

View full details
$1,898.99 - $1,898.99
$1,898.99
$1,898.99 - $1,898.99
$1,898.99
$1,898.99 - $1,898.99
$1,898.99
$1,898.99 - $1,898.99
$1,898.99

BLUETTI B500K 5,120Wh Expansion Battery for Apex 300 Power Station

Bluetti

BLUETTI B500K 5.12kWh Expansion Battery | Apex 300 Compatible | Scalable to 100kWh | LiFePO₄ Backup Power Expandable Power. Built for Apex 300 Syst...

View full details
$1,898.99 - $1,898.99
$1,898.99
$1,898.99 - $1,898.99
$1,898.99
$1,448.99 - $1,448.99
$1,448.99
$1,448.99 - $1,448.99
$1,448.99

Fortress Power eFlex MAX 5.4kWh Lithium Battery Storage

Fortress Power

Fortress Power eFlex MAX 5.4kWh Lithium Battery Storage | 8,000+ Cycles | 99% Efficiency | Outdoor-Ready Design Reliable Backup. Long-Term Value. U...

View full details
$1,448.99 - $1,448.99
$1,448.99
$1,448.99 - $1,448.99
$1,448.99
$4,500.00 - $4,500.00
$4,500.00
$4,500.00 - $4,500.00
$4,500.00

BigBattery ETHOS 6kW 10.2kWh Off-Grid Power System

BigBattery

BigBattery ETHOS 6kW 10.2kWh Off-Grid Power System The BigBattery ETHOS 48V 10.2kWh Power System is a modular, off-grid energy storage solution des...

View full details
$4,500.00 - $4,500.00
$4,500.00
$4,500.00 - $4,500.00
$4,500.00
$5,800.00 - $5,800.00
$5,800.00
$5,800.00 - $5,800.00
$5,800.00

BigBattery ETHOS 6kW 15.3kWh Off-Grid Power System

BigBattery

BigBattery ETHOS 6kW 15.3kWh Off-Grid Power System The BigBattery ETHOS 48V 15.3kWh Power System is a high-capacity, off-grid energy storage soluti...

View full details
$5,800.00 - $5,800.00
$5,800.00
$5,800.00 - $5,800.00
$5,800.00
$8,150.00 - $8,150.00
$8,150.00
$8,150.00 - $8,150.00
$8,150.00

BigBattery ETHOS 12kW 20.4kWh Off-Grid Power System

BigBattery

BigBattery ETHOS 12kW 20.4kWh Off-Grid Power System The BigBattery ETHOS 48V 20.4kWh Power System is a top-tier, off-grid energy solution designed ...

View full details
$8,150.00 - $8,150.00
$8,150.00
$8,150.00 - $8,150.00
$8,150.00
$10,700.00 - $10,700.00
$10,700.00
$10,700.00 - $10,700.00
$10,700.00

BigBattery ETHOS 12kW 30.7kWh Off-Grid Power System

BigBattery

BigBattery ETHOS 12kW 30.7kWh Off-Grid Power System The BigBattery ETHOS 48V 30.7kWh Power System is the ultimate off-grid energy storage solution ...

View full details
$10,700.00 - $10,700.00
$10,700.00
$10,700.00 - $10,700.00
$10,700.00
$2,990.00 - $2,990.00
$2,990.00
$2,990.00 - $2,990.00
$2,990.00

BigBattery ETHOS 48V 10.2kWh (2 Module) – Stackable Power Storage

BigBattery

BigBattery ETHOS 48V 10.2kWh (2 Module) – Stackable Power Storage The BigBattery ETHOS 48V 10.2kWh Stackable Power Storage System is the perfect mo...

View full details
$2,990.00 - $2,990.00
$2,990.00
$2,990.00 - $2,990.00
$2,990.00
$4,250.00 - $4,250.00
$4,250.00
$4,250.00 - $4,250.00
$4,250.00

BigBattery ETHOS 48V 15.3kWh (3 Module) – Stackable Power Storage

BigBattery

BigBattery ETHOS 48V 15.3kWh (3 Module) – Stackable Power Storage The BigBattery ETHOS 48V 15.3kWh Stackable Power Storage System is your all-in-on...

View full details
$4,250.00 - $4,250.00
$4,250.00
$4,250.00 - $4,250.00
$4,250.00
$5,500.00 - $5,500.00
$5,500.00
$5,500.00 - $5,500.00
$5,500.00

BigBattery ETHOS 48V 20.4kWh (4 Module) – Stackable Power Storage

BigBattery

BigBattery ETHOS 48V 20.4kWh (4 Module) – Stackable Power Storage The BigBattery ETHOS 48V 20.4kWh Stackable Power Storage System is a robust, high...

View full details
$5,500.00 - $5,500.00
$5,500.00
$5,500.00 - $5,500.00
$5,500.00
$18,300.00 - $18,300.00
$18,300.00
$18,300.00 - $18,300.00
$18,300.00

Bigbattery 30.7kWh ETHOS + 2x EG4 18kPV Inverter (ESS)

BigBattery

BigBattery 48V 30.7kWh ETHOS Stackable Battery Kit – Dual EG4 18kPV Hybrid Inverters (ESS) Power your entire home with confidence using the BigBatt...

View full details
$18,300.00 - $18,300.00
$18,300.00
$18,300.00 - $18,300.00
$18,300.00
$7,850.00 - $7,850.00
$7,850.00
$7,850.00 - $7,850.00
$7,850.00

BigBattery ETHOS + EG4 18kPV Inverter (ESS)

BigBattery

BigBattery 48V 10.24kWh ETHOS Stackable Battery Kit – EG4 18kPV Hybrid Inverter (ESS) Power your home with confidence using the BigBattery 48V ETHO...

View full details
$7,850.00 - $7,850.00
$7,850.00
$7,850.00 - $7,850.00
$7,850.00
$420.00 - $420.00
$420.00
$420.00 - $420.00
$420.00

BigBattery ETHOS Control Box

BigBattery

BigBattery 48V ETHOS Control Box – System Monitoring & Communication Hub Take full command of your energy system with the BigBattery 48V ETHOS ...

View full details
$420.00 - $420.00
$420.00
$420.00 - $420.00
$420.00
$1,290.00 - $1,290.00
$1,290.00
$1,290.00 - $1,290.00
$1,290.00

BigBattery 48V ETHOS 5.12kWh Stackable Battery Module

BigBattery

BigBattery 48V ETHOS 5.12kWh Stackable Battery Module Power your home with confidence using the BigBattery 48V ETHOS 5.12kWh Battery Module — the f...

View full details
$1,290.00 - $1,290.00
$1,290.00
$1,290.00 - $1,290.00
$1,290.00
$7,180.00 - $7,180.00
$7,180.00
$7,180.00 - $7,180.00
$7,180.00

BigBattery 3x 48V Husky 2 INV + 5kW Victron Multiplus

BigBattery

BigBattery 48V 15.36kWh 3X HUSKY 2 Lithium Battery KIT – Victron 5kW MultiPlus Inverter Take your off-grid power to the next level with the BigBatt...

View full details
$7,180.00 - $7,180.00
$7,180.00
$7,180.00 - $7,180.00
$7,180.00
$5,340.00 - $5,340.00
$5,340.00
$5,340.00 - $5,340.00
$5,340.00

BigBattery 2x 48V Husky 2 INV + 5kW Victron Multiplus

BigBattery

BigBattery 48V 10.24kWh 2X HUSKY 2 Lithium Battery KIT – Victron 5kW MultiPlus Inverter Take your power system to the next level with the BigBatter...

View full details
$5,340.00 - $5,340.00
$5,340.00
$5,340.00 - $5,340.00
$5,340.00
$3,204.13 - $3,204.13
$3,204.13
$3,204.13 - $3,204.13
$3,204.13

BigBattery 48V Husky 2 INV + 3kW Victron Multiplus

BigBattery

BigBattery 48V 20.48kWh 4X HUSKY 2 Lithium Battery KIT – EG4 12K Off-Grid Inverter Power through anything with the BigBattery 48V 4X HUSKY 2 Kit, d...

View full details
$3,204.13 - $3,204.13
$3,204.13
$3,204.13 - $3,204.13
$3,204.13
$1,850.00 - $1,850.00
$1,850.00
$1,850.00 - $1,850.00
$1,850.00

BigBattery 48V HUSKY 2 INV

BigBattery

BigBattery 48V HUSKY 2 INV – 5.12kWh LiFePO₄ Battery (Inverter Version) The BigBattery 48V HUSKY 2 INV delivers 5.12kWh of rugged, high-performance...

View full details
$1,850.00 - $1,850.00
$1,850.00
$1,850.00 - $1,850.00
$1,850.00
$8,100.00 - $8,100.00
$8,100.00
$8,100.00 - $8,100.00
$8,100.00

BigBattery ETHOS 48V 30.7kWh (6 Module) – Stackable Power Storage

BigBattery

BigBattery ETHOS 48V 30.7kWh (6 Module) – Stackable Power Storage The BigBattery ETHOS 48V 30.7kWh Stackable Power Storage System is the ultimate e...

View full details
$8,100.00 - $8,100.00
$8,100.00
$8,100.00 - $8,100.00
$8,100.00
$9,949.00 - $9,949.00
$9,949.00
$9,949.00 - $9,949.00
$9,949.00

BigBattery 48V 4X HUSKY 2 Lithium Battery KIT – EG4 12K Off-Grid Inverter

BigBattery

BigBattery 48V 20.48kWh 4X HUSKY 2 Lithium Battery KIT – EG4 12K Off-Grid Inverter Power through any environment with the BigBattery 48V 4X HUSKY 2...

View full details
$9,949.00 - $9,949.00
$9,949.00
$9,949.00 - $9,949.00
$9,949.00
$6,999.00 - $6,999.00
$6,999.00
$6,999.00 - $6,999.00
$6,999.00

BigBattery 48V 3X HUSKY 2 Lithium Battery KIT – EG4 6K Off-Grid Inverter

BigBattery

BigBattery 48V 15.36kWh 3X HUSKY 2 Lithium Battery KIT – EG4 6K Off-Grid Inverter Power through anything with the BigBattery 48V 3X HUSKY 2 Kit, de...

View full details
$6,999.00 - $6,999.00
$6,999.00
$6,999.00 - $6,999.00
$6,999.00
$5,160.00 - $5,160.00
$5,160.00
$5,160.00 - $5,160.00
$5,160.00

BigBattery 48V 2X HUSKY 2 Lithium Battery KIT – EG4 6K Off-Grid Inverter

BigBattery

BigBattery 48V 10.24kWh 2X HUSKY 2 Lithium Battery KIT – EG4 6K Off-Grid Inverter Take your off-grid power system to the next level with the BigBat...

View full details
$5,160.00 - $5,160.00
$5,160.00
$5,160.00 - $5,160.00
$5,160.00
$8,800.00 - $8,800.00
$8,800.00
$8,800.00 - $8,800.00
$8,800.00

BigBattery 24V 4X HUSKY 2 Lithium Battery KIT – Victron

BigBattery

BigBattery 24V 20.48kWh 4X HUSKY 2 Lithium Battery KIT – Victron Power your off-grid adventures, mobile setups, or emergency systems with confidenc...

View full details
$8,800.00 - $8,800.00
$8,800.00
$8,800.00 - $8,800.00
$8,800.00