---
product_id: 740172282
title: "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"
brand: "dr.prepare"
price: "557 zł"
currency: PLN
in_stock: true
reviews_count: 8
category: "Dr.Prepare"
url: https://www.desertcart.pl/products/740172282-dr-prepare-12v-20ah-lifepo4-lithium-battery-with-grade-cells
store_origin: PL
region: Poland
---

# 20A built-in BMS protection IP56 water & dust resistant 4000+ deep cycles 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

**Brand:** dr.prepare
**Price:** 557 zł
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up smarter, last longer, and stay ahead of the pack!

## Quick Answers

- **What is this?** 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 by dr.prepare
- **How much does it cost?** 557 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/740172282-dr-prepare-12v-20ah-lifepo4-lithium-battery-with-grade-cells)

## Best For

- dr.prepare enthusiasts

## Why This Product

- Trusted dr.prepare brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Featherweight Power:** 60% lighter than traditional SLA batteries—portable energy without the bulk.
- • **Modular Power Banks:** Supports series & parallel wiring—build up to 4.096 kWh for scalable energy solutions.
- • **Smart Safety Shield:** Integrated 20A BMS guards against overcharge, over-discharge, short circuit & more.
- • **Unmatched Longevity:** Over 4,000 deep cycles—outlasts lead-acid by 8x for serious cost savings.
- • **Versatile Applications:** Perfect for fish finders, solar setups, alarms & outdoor gear—upgrade your power game.

## Overview

The DR.PREPARE 12V 20Ah LiFePO4 battery features Grade A+ cells with a robust 20A BMS offering six layers of protection. It delivers over 4,000 deep charge cycles—far exceeding lead-acid alternatives—while weighing just 5.95 lbs for easy portability. IP56-rated for water and dust resistance, it supports flexible series and parallel connections to build custom battery banks up to 4.096 kWh. Ideal for fish finders, solar systems, alarms, and more, this eco-friendly lithium iron phosphate battery ensures reliable, long-lasting power with significant cost savings.

## Description

Buy 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: 12V - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: New battery, not old stock! - First full charge then discharge to 10.5v with a fast bounce back to 11v. I'm happy so far. This was a 2 amp rate and it held extremely steady till the end. A heavier test will be next. Before I run the second 20 amp hour battery test though I have fantastic results from the hundred amp hour battery that I also purchased! I had to baby my tester as much as I could to pull enough juice out of it in a reasonable amount of time but I managed to get 99.12 amp hours and roughly 9 hours 57 minutes at about an 8-10 amp draw rate. I'll admit these are the very first charge and discharge tests on these batteries that I've received within days of this post but I will continue to test and I will update on each of these batteries if anything changes for the worse. So far though $120 for $100 amp hours and $46 for 20 amp hours is a pretty good deal!
Review: Great product - Works great haven't had any problems out of this battery. Have been going o 6 months now problems

## Features

- 【Built-in 20A BMS Protection, Grade A+ Cells】Our 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 Costs】Dr.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.
- 【Series and Parallel Connection】Our 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 Lifting】Dr.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 Applications】Dr.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, small UPS backup power systems ( each battery rated power =256W, 2 Batteries in Series for UPS ＜500W, 4 Batteries in Series for UPS＜1000W), solar gate openers, solar water pump systems, home alarm systems, home security systems, amateur radios, outdoor camping, etc (Not a starter battery).
- 【Kind Reminder】1. Use a compatible AC-to-DC LiFePO4 charger to charge the LiFePO4 battery type with crocodile clips. Do not use general-purpose or lead-acid battery chargers. Optimal charging current is 10A, with a max of 20A.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0F6CMRKS9 |
| Batteries | 1 Lithium Ion batteries required. (included) |
| Best Sellers Rank | #49,434 in Health & Household ( See Top 100 in Health & Household ) #92 in 12V Batteries |
| Customer Reviews | 4.4 4.4 out of 5 stars (346) |
| Date First Available | April 25, 2025 |
| Item Weight | 4.9 pounds |
| Item model number | DBT12100LFP-S48 |
| Manufacturer | DR.PREPARE |
| Product Dimensions | 3 x 7 x 6.5 inches |

## Product Details

- **Battery Cell Composition:** Lithium-Phosphate
- **Brand:** DR.PREPARE
- **Model Name:** 12V 20Ah LiFePO4 Lithium Battery
- **Number of Batteries:** 1 Lithium Ion batteries required. (included)
- **Voltage:** 12.8 Volts

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/61SYU0-WBpL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ New battery, not old stock!
*by M***T on November 21, 2025*

First full charge then discharge to 10.5v with a fast bounce back to 11v. I'm happy so far. This was a 2 amp rate and it held extremely steady till the end. A heavier test will be next. Before I run the second 20 amp hour battery test though I have fantastic results from the hundred amp hour battery that I also purchased! I had to baby my tester as much as I could to pull enough juice out of it in a reasonable amount of time but I managed to get 99.12 amp hours and roughly 9 hours 57 minutes at about an 8-10 amp draw rate. I'll admit these are the very first charge and discharge tests on these batteries that I've received within days of this post but I will continue to test and I will update on each of these batteries if anything changes for the worse. So far though $120 for $100 amp hours and $46 for 20 amp hours is a pretty good deal!

### ⭐⭐⭐⭐⭐ Great product
*by T***M on January 1, 2026*

Works great haven't had any problems out of this battery. Have been going o 6 months now problems

### ⭐⭐⭐⭐⭐ Dr. Prepare great 31 life batteries
*by C***S on January 5, 2026*

Very good life batteries, very nice to have an charge inducator

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-01-28*