---
product_id: 738328266
title: "DR.PREPARE 12V 7Ah LiFePO4 Battery, Lithium Batteries 12v with 7A BMS, 4000+ Deep Cycle Lithium Iron Phosphate Rechargeable Battery for Fish Finder, Lighting, Alarm System"
brand: "dr.prepare"
price: "¥10407"
currency: JPY
in_stock: true
reviews_count: 8
category: "Dr.Prepare"
url: https://www.desertcart.jp/products/738328266-dr-prepare-12v-7ah-lifepo4-battery-lithium-batteries-12v-7a
store_origin: JP
region: Japan
---

# 7A built-in BMS protection 4000+ deep cycles 60% lighter weight DR.PREPARE 12V 7Ah LiFePO4 Battery, Lithium Batteries 12v with 7A BMS, 4000+ Deep Cycle Lithium Iron Phosphate Rechargeable Battery for Fish Finder, Lighting, Alarm System

**Brand:** dr.prepare
**Price:** ¥10407
**Availability:** ✅ In Stock

## Summary

> 🔋 Power Up Smarter, Last Longer, Carry Lighter!

## Quick Answers

- **What is this?** DR.PREPARE 12V 7Ah LiFePO4 Battery, Lithium Batteries 12v with 7A BMS, 4000+ Deep Cycle Lithium Iron Phosphate Rechargeable Battery for Fish Finder, Lighting, Alarm System by dr.prepare
- **How much does it cost?** ¥10407 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/738328266-dr-prepare-12v-7ah-lifepo4-battery-lithium-batteries-12v-7a)

## 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

- • **Smart & Safe Power:** Integrated 7A BMS with 6-layer protection keeps your devices secure and battery healthy.
- • **Unmatched Longevity:** Over 4,000 deep cycles—outlasts lead-acid by 8x for serious cost savings.
- • **Eco-Friendly & Durable:** IP56-rated water/dust resistance with no heavy metals—power your gear sustainably.
- • **Flexible Battery Banks:** Supports series & parallel connections up to 16 units for scalable, high-capacity setups.
- • **Ultra-Lightweight Design:** Weighs just 1.98 lbs—carry twice the power without the bulk or backache.

## Overview

The DR.PREPARE 12V 7Ah LiFePO4 battery delivers industry-leading durability with 4000+ deep cycles and a full 100% discharge capacity. Featuring a built-in 7A Battery Management System (BMS) with six safety protections and IP56 water/dust resistance, it ensures reliable, safe performance across diverse applications. Weighing just 1.98 lbs, it’s 60% lighter than traditional lead-acid batteries, making it ideal for professionals seeking efficient, scalable, and eco-friendly power solutions for fish finders, lighting, alarm systems, and more.

## Description

Buy DR.PREPARE 12V 7Ah LiFePO4 Battery, Lithium Batteries 12v with 7A BMS, 4000+ Deep Cycle Lithium Iron Phosphate Rechargeable Battery for Fish Finder, Lighting, Alarm System: 12V - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: New battery, not old stock! - After a full initial charge, I discharged the battery down to 10.5 V, and it rebounded quickly to 11 V. So far, I’m very happy with the performance. This test was done at a 2-amp discharge rate, and the voltage stayed extremely steady right up until cutoff. A heavier load test is coming next. Before running a higher-current test on the 20 Ah battery, I also tested the 100 Ah battery I purchased—and the results were excellent. I had to be gentle with my tester to pull enough current over a reasonable time span, but I managed to measure 99.12 Ah over approximately 9 hours and 57 minutes, at an estimated 8–10 amp draw. These were the very first charge and discharge tests, completed within days of receiving the batteries. I plan to continue testing and will update this review if anything changes. As of now, $120 for 100 Ah and $46 for 20 Ah feels like a very solid value. Update (2-7-26): After a few months of light, occasional use, both batteries are still performing great. I recently purchased a BT90 Pro battery tester with lithium testing capability. After partially discharging the 100 Ah battery and letting it sit unused for a couple of months, the tester still reported it as being in excellent, full-charge condition. Out of curiosity, I also tested the battery’s 100-amp maximum discharge rating using a Harbor Freight CEN-TECH 100-amp load tester. It successfully delivered 100 amps for 9 seconds without the voltage dropping below 12.6 V. The battery stayed cool throughout the test, and the BMS did not trip. Everything continues to work exactly as expected. I’ll keep testing and updating if anything changes.
Review: Great product - Works great haven't had any problems out of this battery. Have been going o 6 months now problems

## Features

- 【Longer Lifetime, Lower Costs】Dr.Prepare 12V 7Ah LiFePO4 batteries offer over 4,000 cycles, surpassing the 300-500 cycles of lead acid batteries. Compared to SLA battery's 40-60% discharge, our lithium batteries can discharge 100%, extending the time between replacements, leading to significant cost savings. Higher energy density and many years of daily use from Dr.Prepare Lithium batteries.
- 【Built-in 7A 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.
- 【Series and Parallel Connection】Our lithium batteries support wiring in series to create a 24V/36V/48V 7Ah battery bank system. Additionally, they can be wired in parallel to build a 12V 16Ah/24Ah/32Ah 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 1433.6Wh. 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 7Ah lithium deep battery weighs only 1.98 lbs, equivalent to two 500ml water bottles. In contrast, a sealed lead-acid battery typically weighs around 6 to 7 lbs, resulting in a remarkable 60% reduction in weight.
- 【Wide Applications】Dr.Prepare 12V 7Ah lithium battery is the perfect replacement for your less durable SLA batteries. It is suitable for a variety of applications, including fish finder, solar gate openers, solar water pump systems, home alarm systems, home security systems, amateur radios and more (Not a starter battery).
- 【Kind Reminder】1. Use a compatible AC-to-DC LiFePO4 charger to charge the LiFePO4 battery type. Do not use general-purpose or lead-acid battery chargers. 2. It is F2 terminals, you should use a charger with crocodile clips, CANNOT fix with regular screws for charging. 3. Optimal charging current is 3A, with a max of 7A.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DZ281Z3C |
| Batteries | 1 12V batteries required. (included) |
| Best Sellers Rank | #78,491 in Health & Household ( See Top 100 in Health & Household ) #151 in 12V Batteries |
| Customer Reviews | 4.3 4.3 out of 5 stars (362) |
| Date First Available | March 3, 2025 |
| Item Weight | 2.2 pounds |
| Item model number | DBT12100LFP-S48 |
| Manufacturer | DR.PREPARE |
| Package Dimensions | 6.34 x 4.45 x 2.8 inches |

## Product Details

- **Battery Cell Composition:** Lithium Ion
- **Brand:** DR.PREPARE
- **Number of Batteries:** 1 12V batteries required. (included)
- **Unit Count:** 1.0 Count
- **Voltage:** 12.8 Volts

## Images

![DR.PREPARE 12V 7Ah LiFePO4 Battery, Lithium Batteries 12v with 7A BMS, 4000+ Deep Cycle Lithium Iron Phosphate Rechargeable Battery for Fish Finder, Lighting, Alarm System - Image 1](https://m.media-amazon.com/images/I/61lG8zymIiL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

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

After a full initial charge, I discharged the battery down to 10.5 V, and it rebounded quickly to 11 V. So far, I’m very happy with the performance. This test was done at a 2-amp discharge rate, and the voltage stayed extremely steady right up until cutoff. A heavier load test is coming next. Before running a higher-current test on the 20 Ah battery, I also tested the 100 Ah battery I purchased—and the results were excellent. I had to be gentle with my tester to pull enough current over a reasonable time span, but I managed to measure 99.12 Ah over approximately 9 hours and 57 minutes, at an estimated 8–10 amp draw. These were the very first charge and discharge tests, completed within days of receiving the batteries. I plan to continue testing and will update this review if anything changes. As of now, $120 for 100 Ah and $46 for 20 Ah feels like a very solid value. Update (2-7-26): After a few months of light, occasional use, both batteries are still performing great. I recently purchased a BT90 Pro battery tester with lithium testing capability. After partially discharging the 100 Ah battery and letting it sit unused for a couple of months, the tester still reported it as being in excellent, full-charge condition. Out of curiosity, I also tested the battery’s 100-amp maximum discharge rating using a Harbor Freight CEN-TECH 100-amp load tester. It successfully delivered 100 amps for 9 seconds without the voltage dropping below 12.6 V. The battery stayed cool throughout the test, and the BMS did not trip. Everything continues to work exactly as expected. I’ll keep testing and updating if anything changes.

### ⭐⭐⭐⭐⭐ 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

### ⭐⭐⭐⭐⭐ Great buy . Got them for the boat too .
*by R***O on January 5, 2026*

Surprised me , replace 8 6 volt batterys that weighed over 480 lbs with 4 of these . Works great . They are 27 lbs apiece which is 108 lbs .

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.jp/products/738328266-dr-prepare-12v-7ah-lifepo4-battery-lithium-batteries-12v-7a](https://www.desertcart.jp/products/738328266-dr-prepare-12v-7ah-lifepo4-battery-lithium-batteries-12v-7a)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-10*