---
product_id: 538356120
title: "KBT 12V 5200mAh Rechargeable Li-ion Battery, DC5521 Male Connector, Replacement Battery Pack with Charger Compatible for 12V Device RC Car, Boat, Robot, DIY, LED Light Strip, CCTV Camera"
brand: "kbt keep better tech"
price: "2252549₫"
currency: VND
in_stock: true
reviews_count: 8
url: https://www.desertcart.vn/products/538356120-kbt-12v-5200mah-rechargeable-li-ion-battery-dc5521-male-connector
store_origin: VN
region: Vietnam
---

# 12V stable voltage output 5200mAh high-capacity power Built-in multi-protection board KBT 12V 5200mAh Rechargeable Li-ion Battery, DC5521 Male Connector, Replacement Battery Pack with Charger Compatible for 12V Device RC Car, Boat, Robot, DIY, LED Light Strip, CCTV Camera

**Brand:** kbt keep better tech
**Price:** 2252549₫
**Availability:** ✅ In Stock

## Summary

> 🔋 Power your passion, stay unstoppable.

## Quick Answers

- **What is this?** KBT 12V 5200mAh Rechargeable Li-ion Battery, DC5521 Male Connector, Replacement Battery Pack with Charger Compatible for 12V Device RC Car, Boat, Robot, DIY, LED Light Strip, CCTV Camera by kbt keep better tech
- **How much does it cost?** 2252549₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/538356120-kbt-12v-5200mah-rechargeable-li-ion-battery-dc5521-male-connector)

## 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

- • **Power That Lasts:** 5200mAh lithium-ion battery delivers extended runtime for your devices, keeping you unplugged longer.
- • **Ready Out of the Box:** Includes a dedicated 12V charger with a 90cm cable for hassle-free recharging anytime, anywhere.
- • **Lightweight & Compact:** At just 295g and a sleek 70x55x40mm size, it fits perfectly into your tech setup without bulk.
- • **Safe & Smart Charging:** Integrated protection against overcharge, over-discharge, over-voltage, and short circuits ensures reliability and peace of mind.
- • **Universal Compatibility:** Seamlessly powers a wide range of 12V devices from RC cars to CCTV cameras and LED strips—one battery to rule them all.

## Overview

The KBT 12V 5200mAh Rechargeable Li-ion Battery Pack offers a robust and reliable power solution for a variety of 12V devices. Featuring a high-capacity lithium-ion cell with over 800 charge cycles, built-in multi-layer protection, and a compact design, it ensures long-lasting, safe, and versatile performance. Perfect for professionals and hobbyists alike, it comes complete with a dedicated charger for immediate use.

## Description

KBT 12V 5200mAh Rechargeable Li-ion Battery, DC5521 Male Connector, Replacement Battery Pack with Charger Compatible for 12V Device RC Car, Boat, Robot, DIY, LED Light Strip, CCTV Camera

## Features

- Package includes: 1*12V 5200mAh battery pack, 1*12V battery charger. Battery pack size 70*55*40mm (L*W*T), battery weight about 295g, battery cable length 18cm, 12V charger cable length 90cm.
- Battery Compatible with: Wireless Cameras, Walkie-Talkies, Digital Cameras, Camcorders, Video Cameras, Bluetooth devices, CD Players, MD players, Portable DVDs, MP3 Players, LED Strip, CCTV Camera, Electronic Piano, Optical Network Unit, Router, Small Bluetooth Amp
- 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 |
|---------------|-------|
| Item Weight | 380 Grams |
| Battery Weight | 295 Grams |
| Unit Count | 1.0 Count |
| Battery Cell Type | Lithium Ion |
| Recommended Uses For Product | Camera |
| Reusability | Rechargeable |
| Battery Capacity | 5200 Milliamp Hours |
| Voltage | 12 Volts |

## Product Details

- **Number of Batteries:** 1 Lithium Ion batteries required. (included)
- **Brand:** KBT KEEP BETTER TECH
- **Battery Cell Composition:** Lithium Ion
- **Battery Capacity:** 5200 Milliamp Hours
- **Recommended Uses For Product:** Camera

## Images

![KBT 12V 5200mAh Rechargeable Li-ion Battery, DC5521 Male Connector, Replacement Battery Pack with Charger Compatible for 12V Device RC Car, Boat, Robot, DIY, LED Light Strip, CCTV Camera - Image 1](https://m.media-amazon.com/images/I/61hO5rqtB2L.jpg)

## Available Options

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

## Questions & Answers

**Q: can I charge/discharge from either connector?**
A: No. The female connector is for charging only; the male connector supplies power from the battery. I definitely wouldn't try switching them since it's a lithium ion battery - it could seriously overheat and cause a fire.

**Q: Will this battery fit any battery holder available elsewhere?  Can I possibly buy a battery holder that will fit this?  Thanks!**
A: not sure  I drilled a hole in an old plastic file card holder and secure all wiring inside and feed the solar panel there also

**Q: Is there a battery holder that fits this?**
A: Hello,

This pacakge including a 12V 5200mAh battery and a battery charger, there is no battery holder inside the pacakge.

Thanks
KBT Team

**Q: If I was to cut the female end would the bare wires be capable of charging and dispersing power? Or does it need a separate input and output?**
A: Hello,

The female DC5521 plug is for charging only.  The bare wires includes positive pole and negtive pole to provide electricity to device.

If you cut the female plug and you need to charge the battery in 12V supply.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice
*by M***C on February 14, 2024*

Nice battery. As others have said, no relevant instructions on charger, but research elsewhere suggested, and experience now confirms, that it's basically plug into power outlet, connect battery and wait until led on charger changes from red to green to show full charge. Battery life and longevity as yet unconfirmed.

### ⭐⭐⭐⭐⭐ For Milwaukee M12 Jacket
*by M***R on November 12, 2023*

I wondered if it would work for the M12 jacket and it does. Works great! Will update with longevity if i remember.

### ⭐⭐⭐⭐ It works but..........................really deserves 2 stars!
*by S***A on November 26, 2024*

I have 2 of these in 2 different sizes and while they work and do charge to 12.6v they seem like they must be made from extremely old or reject cells possibly because they do not hold a charge even when not used very well. So you have to charge each time you want to use and the runtime is lackluster. These are not rated at what is claimed although I did not do a thorough test. Sadly I am going to attempt to start making my own battery packs with quality batteries because there are so many scam pack out there. Stay tuned perhaps soon I will be making custom quality packs for your devices that are as good as they can be!!!

## Frequently Bought Together

- KBT 12V 5200mAh Rechargeable Li-ion Battery, DC5521 Male Connector, Replacement Battery Pack with 12V Charger Compatible for 12V Device RC Car, Boat, Robot, DIY, LED Light Strip, CCTV Camera
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**Shop now:** [https://www.desertcart.vn/products/538356120-kbt-12v-5200mah-rechargeable-li-ion-battery-dc5521-male-connector](https://www.desertcart.vn/products/538356120-kbt-12v-5200mah-rechargeable-li-ion-battery-dc5521-male-connector)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-02*