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DR.PREPARE 12V 20Ah LiFePO4 Lithium Battery with Grade A+ Cells, 4000+ Deep Cycle Lithium Iron Phosphate Rechargeable Battery with 20A BMS for Fish Finder, Solar, Lighting, Alarm System, Scooter

  • Based on 179 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Sep 8
Order within 13 hours and 12 minutes
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Style: 12V 20Ah


Features

  • Built-in 20A BMS Protection, Grade A+ CellsOur lithium batteries feature a built-in BMS with six safeguards: high temperature, overcharge, over-discharge, overcurrent, short circuit, and auto balance protection. Coupled with IP56 water and dust resistance capabilities, it ensures durability in various conditions. Moreover, devoid of heavy and rare metals, our LiFePO4 batteries are environmentally friendly.
  • Longer Lifetime, Lower CostsDr.Prepare12V 20Ah LiFePO4 batteries offer over 4,000 cycles, surpassing the 300-500 cycles of lead acid batteries. Compared to SLA's 40-60% discharge, our lithium batteries are able to discharge 100%, extending the time between replacements, leading to significant cost savings. Higher energy density and 10 years of daily use from Dr.Prepare Lithium batteries.
  • Series and Parallel ConnectionOur lithium batteries support wiring in series to create a 24V/36V/48V 20Ah battery bank system. Additionally, they can be wired in parallel to build a 12V 40Ah/60Ah/80Ah system. Furthermore, you can connect up to 16 batteries in both series and parallel to construct a robust battery bank system with a total capacity of 4.096 kWh. Kindly note that ensure all batteries are fully charged individually before connecting in series.
  • Cut the Weight by 60%, No More Heavy LiftingDr.Prepare's 12 volt 20Ah lithium deep battery weighs only 5.95 lbs, equivalent to five 500ml water bottles. In comparison, a sealed lead-acid battery typically weighs around 20 lbs, resulting in a remarkable 60% reduction in weight.
  • Wide ApplicationsDr.Prepare 12V 20Ah lithium battery is the perfect replacement for your less durable SLA batteries. It is suitable for a variety of applications, including fish finders, electric scooters, small UPS backup power systems ( rated power<500W), solar gate openers, solar water pump systems, home alarm systems, home security systems, amateur radios, ride-on toys, outdoor camping, etc (Not a starter battery).

Brand: DR.PREPARE


Product Dimensions: 3"D x 7"W x 6.5"H


Number Of Cells: 4


Terminal: M5 Terminal


Automotive Fit Type: Universal Fit


Manufacturer: DR.PREPARE


Product Dimensions: 3 x 7 x 6.5 inches


Item Weight: 4.9 pounds


Item model number: DBT12100LFP-S48


Batteries: 1 Lithium Ion batteries required. (included)


Date First Available: April 25, 2025


Manufacturer: DR.PREPARE


Country of Origin: China


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Sep 8

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.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Much lighter than lead acid.
Style: 12V 7Ah
I put it in a UPS. Charged very fast. Very light compared to the old lead acid batteries.
Reviewed in the United States on June 11, 2025 by Richard Andersen

  • Great batteries
Style: 12V 100Ah (2 Pack)
Great batteries for the money. Ran my trolling motor no problem
Reviewed in the United States on May 25, 2025 by Amazon Customer

  • Home alarm back up battery
Style: 12V 7Ah
So much lighter than the regular battery. I hope it gets more than a year of life, especially with these being lithium. If it does, will definately be a 5 star review. Just skeptical with it being so light weight.
Reviewed in the United States on July 1, 2025 by Poolsean

  • Perfect
Great for 24v trolling motor
Reviewed in the United States on May 20, 2025 by Lori Turgeon Lori Turgeon

  • Great batteries
Style: 12V 100Ah with Monitor Screen (2 Pack)
I absolutely love my batteries, I use them for a 24v 70# trolling motor and it is amazing how long they last compared to my group 34's. After owning them for about a year, I did have an issue with one battery. It lost continuity, but the company was awesome to work with and they replaced it under warranty. Will definitely do business again. ... show more
Reviewed in the United States on April 10, 2025 by Jeff clines

  • Marginal battery with ridiculous warranty customer service.
Style: 12V 100Ah with Monitor Screen (2 Pack)
I purchased 2 batteries from this company. Within 10 cycles, one of them quit working. The voltage is 11.6v. It will not take a charge. I have tried force mode, battery repair and even contacted the manufacturer of my charger. It will not charge. My charger works just fine on the second battery. I contacted customer service for the battery manufacturer. They are not in the US so it takes a day to get a response. Once they responded, they asked for voltages. I sent the information they asked for. The next night they replied saying now they need a video of me hooking up the charger and taking voltages. The next night they replied with I didnt tighten the terminals with a wrench and requested another video. So I sent it. The next night they are saying they want the charger out put voltage. I told them that the charger does not start charging unless a battery is detected. The next night they said they need a video of the charger not charging. I am done with this. If you want a marginal battery and a bunch of headaches with the warranty people get this battery. If you dont want all of the BS, get a different brand. ... show more
Reviewed in the United States on June 26, 2025 by P Spencer

  • Works well
Delivered quickly and works great!
Reviewed in the United States on May 11, 2025 by Mark Edward

  • This battery works well - very satisfied.
Excellent battery, very compact, lightweight holds the charge very well.
Reviewed in the United States on April 6, 2025 by Amazon Customer

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