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12v 20ah Battery, 5000+ Deep Cycles Rechargeable Lithium 20Ah Lifepo4 Battery, Built-in 20A BMS, Perfect for RVs, Camping, Power Tools, and Solar Energy Storage Systems, Off-Grid Applications

  • Based on 5 reviews
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Availability: In Stock.
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Arrives Sunday, May 10
Order within 1 hour and 26 minutes
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Features

  • Ultra-long Service Life: Miantev 12v 20ah battery (LiFePO4) enjoys an ultra-long service life of 10 years with more than 5,000 cycles of charging, which is more than 8 times that of ordinary lead-acid batteries, 12v 20ah lifepo4 battery helping you significantly reduce the cost of replacing batteries
  • Lightweight and Portable: 20AH lifepo4 lithium battery weighing only 3.52 pounds, lifepo4 battery 20ah is light and convenient and can be taken outdoors anytime, anywhere, 20 volt lithium battery exceeds the weight limit of lead-acid batteries and is suitable for various environments
  • All-round Protection: The 12v deep cycle battery built-in BMS system protects the battery in all aspects to prevent overcharging, over-discharging, and short circuits, 20 ah lifepo4 battery 12v ensures the safe operation of your equipment and extends the battery life
  • Multi-scenario Application: Whether it is RV adventures, camping trips, or ship sailing, this 20AH lithium battery is your ideal companion. 12v 20ah battery also suitable for many occasions such as electric scooters, golf carts, and backup power supplies
  • Capacity Expansion: 20ah lifepo4 battery supports parallel and series expansion to meet your growing power needs. 12v 20ah lifepo4 can support up to 4 batteries in series, easily achieving a larger capacity

Number of Batteries: 1 Lithium Ion batteries required. (included)


Brand: Miantev


Battery Cell Composition: Lithium Polymer


Battery Capacity: 20 Amp Hours


Recommended Uses For Product: Alarm systems, Campervan, Emergency lighting, Medical equipment, Power Tool, Remote Control Vehicle, Renewable energy storage, Security systems, Solar energy systems, Ups, Wind energy systems See more


Number of Batteries: 1 Lithium Ion batteries required. (included)


Brand: Miantev


Model Number: 12v 20ah


Model Name: 12v 20ah battery


Manufacturer: Miantev


Item Type Name: Lithium iron phosphate Battery


Built-In Media: 12V 20AH Battery pack, LiFePO4 12V 20AH Battery Pack*1, LiFePO4 Lithium Iron Phosphate Battery, Sealed Lead Acid Battery


Warranty Description: 1 year


Battery Cell Type: Lithium Polymer


Compatible Phone Models: Lifepo4 Battery 12V 20AH pack


Voltage: 12 Volts


Reusability: Rechargeable


Amperage: 20 Amps


Battery Capacity: 20 Amp Hours


Unit Count: 1.0 Count


Battery Weight: 0.95 Kilograms


Item Dimensions: 5 x 3.2 x 3 inches


Item Weight: 2.1 Pounds


Antenna Location: Alarm systems, Campervan, Emergency lighting, Medical equipment, Power Tool, Remote Control Vehicle, Renewable energy storage, Security systems, Solar energy systems, Ups, Wind energy systems


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, May 10

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Long lasting
These batteries work great for my cell camera. They keep a charge all season long. They fit well inside an ammo box for keeping out of the weather.
Reviewed in the United States on November 3, 2025 by Patrick

  • Highly recommend
Works great. Using it for ice fishing to power a livescope.
Reviewed in the United States on March 3, 2026 by New England Contractor

  • It works great. Not the best sticker adhesive.
I got this 12v 20ah battery to upgrade one of my portable power stations. I was using a smaller 15ah battery before this. I decided to get this to have a bigger capacity. The size of the battery is not much different from my 15ah battery. I have built quite a few small power stations. These batteries are lighter in weight and work better than the old lead acide batteries I was previously using. I would order another one of these in the future to double my battery life. I keep this power station outside 24/7, and the battery is charged from a solar charge controller. It was packaged nicely. The sticker was peeling, and there was some residue on it, though. I am deducting a star for this. Besides that, it has worked great. They also included alligator clips. ... show more
Reviewed in the United States on August 26, 2024 by Jimmy

  • Fast shipping, good quality for battery, low weight
Good quality, reliable seller
Reviewed in the United States on January 22, 2026 by alex

  • battery holds charge
battery holds charge very well, satisfied with overall performance
Reviewed in the United States on July 6, 2025 by david erickson

  • Great product
Replaced the battery in my bumpboxx and the performance is wonderful. Great product!
Reviewed in the United States on March 17, 2025 by Amazon Customer

  • They work, but not for very long
Bought these to power some outdoor electronics, they have no where near the 20AH as advertised, in comparison to other 8AH lithiums I have performing the same task I’d say these have maybe 6AH, and if they get below 40° they drop so low on voltage they stop working all together. One of the two I bought no longer takes a charge and the other discharges very quickly. If you are going to buy them only plan on getting about a months worth of use out of them. ... show more
Reviewed in the United States on February 5, 2025 by dakota hurd

  • Holds slotted of power.
Liked everything. Very powerful for its size
Reviewed in the United States on November 13, 2024 by Tim Little

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