---
product_id: 777537498
title: "KBT 12V 1200mAh Rechargeable Li-ion Battery, 12 Volt DC5521 Male Connector, Replacement Battery Pack with Charger Compatible for 12V Devices RC Car, Boat, Robot, DIY, LED Light Strip, CCTV Camera"
brand: "kbt keep better tech"
price: "¥32882"
currency: JPY
in_stock: false
reviews_count: 5
category: "Kbt Keep Better Tech"
url: https://www.desertcart.jp/products/777537498-kbt-12v-1200mah-rechargeable-li-ion-battery-12-volt-dc5521
store_origin: JP
region: Japan
---

# 800+ charge cycles longevity 1200mAh high-capacity power 12V DC5521 male connector KBT 12V 1200mAh Rechargeable Li-ion Battery, 12 Volt DC5521 Male Connector, Replacement Battery Pack with Charger Compatible for 12V Devices RC Car, Boat, Robot, DIY, LED Light Strip, CCTV Camera

**Brand:** kbt keep better tech
**Price:** ¥32882
**Availability:** ❌ Out of Stock

## Summary

> 🔋 Power your passion, never miss a beat!

## Quick Answers

- **What is this?** KBT 12V 1200mAh Rechargeable Li-ion Battery, 12 Volt DC5521 Male Connector, Replacement Battery Pack with Charger Compatible for 12V Devices RC Car, Boat, Robot, DIY, LED Light Strip, CCTV Camera by kbt keep better tech
- **How much does it cost?** ¥32882 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/777537498-kbt-12v-1200mah-rechargeable-li-ion-battery-12-volt-dc5521)

## Best For

- kbt keep better tech enthusiasts

## Why This Product

- Trusted kbt keep better tech brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built-In Safety:** Advanced protection board guards against overcharge, over-discharge, and short circuits.
- • **Power That Lasts:** 1200mAh Li-ion battery delivers reliable energy for your 12V devices.
- • **Dependable Support:** Responsive after-sales service ensures your investment stays worry-free.
- • **Fast & Lightweight:** Quick charging with a compact, lightweight design perfect for on-the-go DIY projects.
- • **Versatile Compatibility:** Seamlessly powers RC cars, boats, robots, LED strips, CCTV cameras, and more.

## Overview

The KBT 12V 1200mAh Rechargeable Li-ion Battery pack offers a robust, long-lasting power solution with over 800 charge cycles and built-in safety features. Designed with a 12V DC5521 male connector and lightweight form factor, it’s ideal for powering a wide range of 12V devices including RC cars, boats, robots, LED light strips, and CCTV cameras. Comes with a fast charger and reliable customer support, making it the perfect upgrade for professionals and DIY enthusiasts alike.

## Description

KBT 12V 1200mAh Rechargeable Li-ion Battery, 12 Volt DC5521 Male Connector, Replacement Battery Pack with Charger Compatible for 12V Devices RC Car, Boat, Robot, DIY, LED Light Strip, CCTV Camera: desertcart.co.uk: Grocery

Review: Purchased this battery for my trip-wire car horn camping alarm. The horns were intended for cars undoubtably, but hey I’m a DIY guy. The horn is rated at 12v-5amps(watts never tested by myself ) so when I found this battery I wasn’t sure if it would be powerful enough. Turns out the battery worked great, although the horn doesn’t reach the maximum loudness probably due to the low watt output, it is still very loud. 12v train horns don’t work with this battery, but 14v does. Battery charges fairly fast and I haven’t encountered any heating issues while in use or while charging. Battery and charger are light weight which makes it perfect for my hiking and camping expeditions. Very pleased and will buy more in the future for other diy projects. Shipped fast as well.
Review: Funcional y practico actualmente la utilizo para mis luces auxiliares instalando los focos

## Features

- Package includes: 1*12V 1200mAh battery pack, 1*12V battery charger.
- Battery size: 70*55*20mm (L*W*T),Battery weight about 132g, battery cable length 18cm, 12V charger cable length 90cm.
- Premium battery pack: Build in protection board, prevent battery from over-charge, over-discharge, over-voltage and short-circuit. Each battery pack is build with premium batteries to provide your devices powerful energy.
- Long using life: this 12V battery pack build with lithium-ion battery, no memory effect, is of over 800 times charge-discharge cycles.
- After sales service: please feel freely to contact with us for customer support if you have any probelm with the product. Your inquiry will have our prompt reply.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C2414BQF |
| Guaranteed software updates until | unknown |
| Item model number | KBT12-12A-02 |
| Manufacturer | Shenzhen (KBT) Keep Better Tech Electronics Co., Ltd |
| Package Dimensions | 10.21 x 10.21 x 6.2 cm; 206 g |

## Product Details

- **Battery capacity:** 1200 Milliamp Hours
- **Battery cell composition:** Lithium Ion
- **Brand:** KBT KEEP BETTER TECH
- **Number of batteries:** 1 Lithium Ion batteries required. (included)
- **Recommended uses for product:** Camera, Remote Control Vehicle

## Images

![KBT 12V 1200mAh Rechargeable Li-ion Battery, 12 Volt DC5521 Male Connector, Replacement Battery Pack with Charger Compatible for 12V Devices RC Car, Boat, Robot, DIY, LED Light Strip, CCTV Camera - Image 1](https://m.media-amazon.com/images/I/61BgP2GCjbL.jpg)
![KBT 12V 1200mAh Rechargeable Li-ion Battery, 12 Volt DC5521 Male Connector, Replacement Battery Pack with Charger Compatible for 12V Devices RC Car, Boat, Robot, DIY, LED Light Strip, CCTV Camera - Image 2](https://m.media-amazon.com/images/I/61Ssv2K+OIL.jpg)
![KBT 12V 1200mAh Rechargeable Li-ion Battery, 12 Volt DC5521 Male Connector, Replacement Battery Pack with Charger Compatible for 12V Devices RC Car, Boat, Robot, DIY, LED Light Strip, CCTV Camera - Image 3](https://m.media-amazon.com/images/I/61u1vrGN2QL.jpg)
![KBT 12V 1200mAh Rechargeable Li-ion Battery, 12 Volt DC5521 Male Connector, Replacement Battery Pack with Charger Compatible for 12V Devices RC Car, Boat, Robot, DIY, LED Light Strip, CCTV Camera - Image 4](https://m.media-amazon.com/images/I/717EmSvNIiL.jpg)
![KBT 12V 1200mAh Rechargeable Li-ion Battery, 12 Volt DC5521 Male Connector, Replacement Battery Pack with Charger Compatible for 12V Devices RC Car, Boat, Robot, DIY, LED Light Strip, CCTV Camera - Image 5](https://m.media-amazon.com/images/I/71U+8J2yekL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by L***G on 5 July 2024*

Purchased this battery for my trip-wire car horn camping alarm. The horns were intended for cars undoubtably, but hey I’m a DIY guy. The horn is rated at 12v-5amps(watts never tested by myself ) so when I found this battery I wasn’t sure if it would be powerful enough. Turns out the battery worked great, although the horn doesn’t reach the maximum loudness probably due to the low watt output, it is still very loud. 12v train horns don’t work with this battery, but 14v does. Battery charges fairly fast and I haven’t encountered any heating issues while in use or while charging. Battery and charger are light weight which makes it perfect for my hiking and camping expeditions. Very pleased and will buy more in the future for other diy projects. Shipped fast as well.

### ⭐⭐⭐⭐⭐ Review
*by O***O on 31 May 2025*

Funcional y practico actualmente la utilizo para mis luces auxiliares instalando los focos

### ⭐⭐⭐⭐⭐ Review
*by A***L on 28 May 2024*

Excelente, ahora a encontrarle un uso, solo pido para probar productos y entretenerme, soy jubilado y pues ya no hay que hacer

## Frequently Bought Together

- KBT 12V 1200mAh Rechargeable Li-ion Battery, 12 Volt DC5521 Male Connector, Replacement Battery Pack with Charger Compatible for 12V Devices RC Car, Boat, Robot, DIY, LED Light Strip, CCTV Camera
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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-27*