12V lifepo4 batteries
Dimemsions of Aolithium 12V 12Ah battery: 7.13*6.69*3.03in, portable and compact.
Aolithium LiFePO4 Battery lasts 4 times longer, charges 5 time faster and 1/3 wight than a SLA Battery.
Smart built-in BMS protects it from overcurrent, overvoltage, undervoltage, and short circuit.
Aolithium 12v rechargeable battery is perfect for Riding Toys, Home Alarm, Backup UPS,and more.

12V 20Ah Lithium Iron Phosphate (LiFePO4) Rechargeable Battery

Regular price $162.99 Sale price$99.99 Save $63.00
Shipping calculated at checkout.

• Cycle Life: 2000+ cycles at 90% DOD.

• Automotive grade lithium battery cell.

• A full 12V lead-acid battery replacement.

• Built-in smart battery management system (BMS).

• Certified with ISO9001/UL/CE/UKCA/UN38.3/SDS.

• Connected in parallel or series, up to 2 batteries in series or 4 batteries in parallel.

• U.S. local warehouse, fast delivery. 

Aolithium offers free shipping and ships online orders within the continental U.S. Include ship to Hawaii, Alaska and P.O. Boxes.
Read our shipping policy here.

We stand by our products and our customers. All Aolithium Lithium LiFePO4 Batteries come with a robust 8-year warranty. If you have any questions about your battery, our technical support team have your back. Read our warranty policy here.

We’re thrilled to have you as a Aolithium customer! We want you to be happy with our products. If you’re not completely satisfied with your purchase from Aolithium.com, you can return it for a replacement, exchange, or refund at any time within 30 days of purchase. Read our return policy here.

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battery certification


The lithium battery’s unique built-in Battery Management System (BMS) protects it from overcurrent, overvoltage, undervoltage, and short circuit, which keeps the battery running at peak performance.


Aolithium 12V 20Ah LiFePO4 battery has a minimum of 2000 cycles time, and the design life is up to 8 years.

Even after 2000 cycles @ 90%DOD, they’re still capable of producing 70% of rated capacity. While lead acid batteries only left 50% rated capacity after they hit their 300 to 500 cycles life, and the design life is only 3 years.


Our LiFePO4 battery can be stored practically wherever they fit. They don’t give off toxic fumes of any kind — no fumes, no venting.


The 12V 20Ah Lithium battery is an efficient and fast-charging battery.

It delivers 200% more power, 1/3 the weight, charges 5X faster and lasts 4X longer than lead acid batteries. It’s the perfect combination of size and capacity.


All batteries are certified with ISO9001/UL/CE/UKCA/UN38.3/SDS. 

Meets all US & International regulations for air, ground, and transport.


Perfect ISO quality system
Professional quality inspectors
Advanced testing equipment

Aolithium Lithium Battery

More than 8 years lifespan
2000+cycles at 90%DOD
Cost per cycle $0.049
Weight: 8.60lbs (only 1/3 of lead acid)
Environmental friendly

Laser welded firmer, Solid sheet: Built with rugged ABS container material, the battery is vibration resistant and durable.

Square cell, high reliability, light weight 8.60lbs, can be designed arbitrarily. 1/3 of lead acid.

Soft copper bar connection, carrying large current, flexible installation, can be used by multiple devices at the same time, good heat dissipation.

Lead-acid Battery

Around 3 years lifespan
200-500 cycles
Cost per cycle $0.7
Weight:25.6 lbs
Environmental friendly

Others Lithium Battery

Can't view battery data in real time without bluetooth module.

Round cells, relatively poor stability, can not be arbitrarily designed, slightly poor rate characteristics, slightly lower discharge platform.

Soros welding, not firm.
Hardware board, chip is not programmable, low cost, simple function, no ntc temperature sensor.

BMS uses an analog circuit board, which is bulky and has a short lifespan.

Cable connection, carrying small current, troublesome installation and production, independent wiring, poor heat dissipation.

What's in the box