---
product_id: 148301453
title: "KOOBOOK 3Pcs TP5100 4.2v 8.4v Double Single Lithium Battery Charge Management Lithium Charging Board Compatible 2A Rechargeable Lithium Plate Connector"
brand: "koobook"
price: "4 Lei"
currency: RON
in_stock: false
reviews_count: 5
url: https://www.desertcart.ro/products/148301453-koobook-3pcs-tp5100-4-2v-8-4v-double-single-lithium
store_origin: RO
region: Romania
---

# Programmable charge current Dual voltage support Multiple safety protections KOOBOOK 3Pcs TP5100 4.2v 8.4v Double Single Lithium Battery Charge Management Lithium Charging Board Compatible 2A Rechargeable Lithium Plate Connector

**Brand:** koobook
**Price:** 4 Lei
**Availability:** ❌ Out of Stock

## Summary

> 🔌 Charge Ahead: Power Your Innovations with Confidence!

## Quick Answers

- **What is this?** KOOBOOK 3Pcs TP5100 4.2v 8.4v Double Single Lithium Battery Charge Management Lithium Charging Board Compatible 2A Rechargeable Lithium Plate Connector by koobook
- **How much does it cost?** 4 Lei with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/148301453-koobook-3pcs-tp5100-4-2v-8-4v-double-single-lithium)

## Best For

- koobook enthusiasts

## Why This Product

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

## Key Features

- • **Safety First:** Equipped with overcurrent, undervoltage, and temperature protections for peace of mind.
- • **Stay Informed:** Red and green LED indicators keep you updated on charge status.
- • **Wide Compatibility:** Input voltage range of 5-18V DC ensures adaptability to various power supplies.
- • **Power Up Your Projects:** Compatible with 4.2V and 8.4V lithium batteries for versatile applications.
- • **Smart Charging Technology:** Programmable charge current from 0.1A to 2A for tailored performance.

## Overview

The 3Pcs TP5100 Charging Board is a versatile lithium battery management solution, supporting both 4.2V and 8.4V configurations. With a programmable charge current and multiple safety features, it ensures efficient and secure charging for your projects.

## Description

Review: Great pieces - Must have for diy projects
Review: Works Great! - Charged as expected. Red charging. Blue fully charged. Used as a Solar Panel Motion Detector Battery Charger for 4.2V 3.7V (without the set pads shorted) Battery

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07S2RCT71 |
| Brand | KOOBOOK |
| Color | Green,Red |
| Current Rating | 2 Amps |
| Customer Reviews | 4.1 out of 5 stars 14 Reviews |
| Input Voltage | 20 Volts |
| Item Weight | 0.02 Kilograms |
| Manufacturer | KOOBOOK |
| Mfr Part Number | KB015 |
| Model Number | KB015 |
| Specification Met | reach |
| UPC | 682559865561 |

## Product Details

- **Brand:** KOOBOOK
- **Color:** Green,Red
- **Input Voltage:** 20 Volts
- **Item Weight:** 0.02 Kilograms
- **Specification Met:** reach

## Images

![KOOBOOK 3Pcs TP5100 4.2v 8.4v Double Single Lithium Battery Charge Management Lithium Charging Board Compatible 2A Rechargeable Lithium Plate Connector - Image 1](https://m.media-amazon.com/images/I/61rljbHIJjL.jpg)
![KOOBOOK 3Pcs TP5100 4.2v 8.4v Double Single Lithium Battery Charge Management Lithium Charging Board Compatible 2A Rechargeable Lithium Plate Connector - Image 2](https://m.media-amazon.com/images/I/61eVI7EjMSL.jpg)
![KOOBOOK 3Pcs TP5100 4.2v 8.4v Double Single Lithium Battery Charge Management Lithium Charging Board Compatible 2A Rechargeable Lithium Plate Connector - Image 3](https://m.media-amazon.com/images/I/618l2mPLT+L.jpg)
![KOOBOOK 3Pcs TP5100 4.2v 8.4v Double Single Lithium Battery Charge Management Lithium Charging Board Compatible 2A Rechargeable Lithium Plate Connector - Image 4](https://m.media-amazon.com/images/I/514Hi3RgUGL.jpg)
![KOOBOOK 3Pcs TP5100 4.2v 8.4v Double Single Lithium Battery Charge Management Lithium Charging Board Compatible 2A Rechargeable Lithium Plate Connector - Image 5](https://m.media-amazon.com/images/I/61qOZwExMtL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great pieces
*by B***Y on December 8, 2024*

Must have for diy projects

### ⭐⭐⭐⭐⭐ Works Great!
*by P***. on October 21, 2022*

Charged as expected. Red charging. Blue fully charged. Used as a Solar Panel Motion Detector Battery Charger for 4.2V 3.7V (without the set pads shorted) Battery

### ⭐⭐⭐⭐⭐ Worked perfectly (see another review's wiring diagram)
*by E***L on June 16, 2021*

Did exactly what I needed, which was to charge 2 18650s in series. Wired this up to a 12V USB-C converter also from Amazon, and bingo - Nice little charging circuit for my youngest's wireless speakers.

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**Shop now:** [https://www.desertcart.ro/products/148301453-koobook-3pcs-tp5100-4-2v-8-4v-double-single-lithium](https://www.desertcart.ro/products/148301453-koobook-3pcs-tp5100-4-2v-8-4v-double-single-lithium)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-07-17*