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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.

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BLUETTI B4810 LiFePO₄ 100 Ah Battery – 51.2 V

Bluetti

BLUETTI B4810 48V LiFePO₄ Battery | Modular, Expandable Energy Storage Reliable, scalable power for any environment. The ...

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BLUETTI B500K for Apex 300 Portable Power Station with Hub D1

Bluetti

BLUETTI B500K 5.12kWh Expansion Battery Bundle | Apex 300 Compatible | Scalable to 100kWh | LiFePO₄ Backup Power Expandab...

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BLUETTI 3x B300K Expansion Batteries for Apex 300 - 8,294.4Wh

Bluetti

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

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BLUETTI Apex 300 Portable Power Station + 2× B300K Expansion Batteries – 8,294.4Wh Total Capacity

Bluetti

BLUETTI Apex 300 + 2× B300K Expansion Batteries (2,764.8Wh Each) | 120V/240V Power | Scalable Backup & Off-Grid Energy ...

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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 ...

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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 Expandabl...

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$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 powe...

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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....

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$4,705.00

BigBattery ETHOS 6kW 10.2kWh Off-Grid Power System

BigBattery

BigBattery ETHOS 6kW 10.2kWh Off-Grid Power System Modular Lithium Storage with 6kW EG4 Inverter for Residential & Li...

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$4,705.00 - $4,705.00
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BigBattery ETHOS 6kW 15.3kWh Off-Grid Power System

BigBattery

BigBattery ETHOS 6kW 15.3kWh Off-Grid Power System Modular Lithium Storage with 6kW EG4 Inverter for Residential & Li...

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$6,005.00 - $6,005.00
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BigBattery ETHOS 12kW 20.4kWh Off-Grid Power System

BigBattery

BigBattery ETHOS 12kW 20.4kWh Off-Grid Power System Modular Lithium Storage with EG4 12kW Inverter for High-Capacity Off-...

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$7,765.00 - $7,765.00
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$10,345.00 - $10,345.00
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BigBattery ETHOS 12kW 30.7kWh Off-Grid Power System

BigBattery

BigBattery ETHOS 12kW 30.7kWh Off-Grid Power System Complete Modular Lithium Storage with EG4 12kW Inverter for Off-Grid ...

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$10,345.00 - $10,345.00
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$2,780.00 - $2,780.00
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$2,780.00

BigBattery ETHOS 48V 10.2kWh (2 Module) - Home Battery Backup

BigBattery

BigBattery ETHOS 48V 10.2kWh (2 Module) - Home Battery Backup Stackable Power Storage – Modular Lithium Backup for Tiny H...

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$2,780.00 - $2,780.00
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$4,030.00 - $4,030.00
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BigBattery ETHOS 48V 15.3kWh (3 Module) - Home Battery Backup

BigBattery

BigBattery ETHOS 48V 15.3kWh (3 Module) - Home Battery Backup Stackable Power Storage – Expandable Lithium Backup for Off...

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$4,030.00 - $4,030.00
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$5,570.00 - $5,570.00
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BigBattery ETHOS 48V 20.4kWh (4 Module) - Home Battery Backup

BigBattery

BigBattery ETHOS 48V 20.4kWh (4 Module) - Home Battery Backup Stackable Power Storage System – Scalable Lithium Backup &a...

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$5,570.00 - $5,570.00
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$18,071.00 - $18,071.00
$18,071.00
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$18,071.00

Bigbattery ETHOS 30.7kWh + 2x EG4 18kPV Hybrid Inverter (ESS) | Grid-Tied Home Solar System

BigBattery

Bigbattery ETHOS 30.7kWh + 2x EG4 18kPV Hybrid Inverter (ESS) | Grid-Tied Home Solar System Power your entire home with c...

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BigBattery ETHOS 10.23kWh + 1x EG4 18kPV Hybrid Inverter (ESS) | Grid-Tied Home Solar System

BigBattery

BigBattery ETHOS 10.23kWh + 1x EG4 18kPV Hybrid Inverter (ESS) | Grid-Tied Home Solar System Power your home with confide...

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$280.00 - $280.00
$280.00
$280.00 - $280.00
$280.00

BigBattery ETHOS Control Box

BigBattery

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

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$280.00 - $280.00
$280.00
$280.00 - $280.00
$280.00
$1,250.00 - $1,250.00
$1,250.00
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$1,250.00

BigBattery ETHOS 48 5.12kWh - Home Battery Backup

BigBattery

BigBattery ETHOS 48 5.12kWh - Home Battery Backup Power your home with confidence using the BigBattery 48V ETHOS 5.12kWh ...

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$1,250.00 - $1,250.00
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BigBattery 48V 3X HUSKY 2 Kit + Victron MultiPluss-II 5000W Inverter Charger

BigBattery

BigBattery 48V 3X HUSKY 2 Kit + Victron MultiPluss-II 5000W Inverter Charger Take your off-grid power to the next level w...

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$6,551.80 - $6,551.80
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$4,926.80 - $4,926.80
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BigBattery 48V 2X HUSKY 2 Kit + Victron MultiPluss-II 5000W Inverter Charger

BigBattery

BigBattery 48V 2X HUSKY 2 Kit + Victron MultiPluss-II 5000W Inverter Charger Take your power system to the next level wit...

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$4,926.80 - $4,926.80
$4,926.80
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$4,926.80
$2,994.13 - $2,994.13
$2,994.13
$2,994.13 - $2,994.13
$2,994.13

BigBattery 48V HUSKY 2 Kit + Victron MultiPluss-II 3000W Inverter Charger

BigBattery

BigBattery 48V HUSKY 2 Kit + Victron MultiPluss-II 3000W Inverter Charger Power through anything with the BigBattery 48V ...

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$2,994.13 - $2,994.13
$2,994.13
$2,994.13 - $2,994.13
$2,994.13
$1,580.00 - $1,580.00
$1,580.00
$1,580.00 - $1,580.00
$1,580.00

BigBattery 48V HUSKY Lithium Battery 5.12kWh 100Ah | LiFePO4 | Inverter Version

BigBattery

BigBattery 48V HUSKY Lithium Battery 5.12kWh 100Ah | LiFePO4 | Inverter Version The BigBattery 48V HUSKY 2 INV delivers 5...

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$1,580.00 - $1,580.00
$1,580.00
$1,580.00 - $1,580.00
$1,580.00
$8,070.00 - $8,070.00
$8,070.00
$8,070.00 - $8,070.00
$8,070.00

BigBattery ETHOS 48V 30.7kWh (6 Module) - Home Battery Backup

BigBattery

BigBattery ETHOS 48V 30.7kWh (6 Module) - Home Battery Backup Stackable Power Storage System – Scalable Lithium Backup &a...

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$8,070.00 - $8,070.00
$8,070.00
$8,070.00 - $8,070.00
$8,070.00

Get In Touch:

Business Hours: 

Mon – Sun 

9am - 6pm EST

Email: Support@ecogridsupply.com

Phone: 

(855) 434-2703

Company Information:

Eco Grid Supply

Address:

28 E Main St

Unit #150

Avon Park, FL 33825

Help Center:

About Us

Contact Us

Terms Of Service

Privacy Policy

Shipping Policy

Returns & Refund Policy

Cancellation Policy

Billing Terms and Conditions

Payment Policy

Price Match Guarantee

Cookie Policy

Disclaimer

Get In Touch:

Business Hours: 

Mon – Sun - 9am - 6pm EST

Email: Support@ecogridsupply.com

Phone: (855) 434-2703

Company Information:

Eco Grid Supply

Address:

28 E Main St

Unit #150

Avon Park, FL 33825

Help Center

About Us

Contact Us

Terms Of Service

Privacy Policy

Shipping Policy

Returns & Refund Policy

Cancellation Policy

Billing Terms and Conditions

Payment Policy

Price Match Guarantee

Cookie Policy

Disclaimer
Title

© Eco Grid Supply. All Rights Reserved

© Eco Grid Supply. All Rights Reserved