---
product_id: 15138929
title: "Adafruit 259 , USB Li-Ion/LiPoly Charger, v1.2"
brand: "adafruit"
price: "€ 29.94"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/15138929-adafruit-259-usb-li-ion-lipoly-charger-v1-2
store_origin: NL
region: Netherlands
---

# USB Li-Ion/LiPoly Charger Weight: 5.7G 10K NTC Thermistor Support Adafruit 259 , USB Li-Ion/LiPoly Charger, v1.2

**Brand:** adafruit
**Price:** € 29.94
**Availability:** ✅ In Stock

## Summary

> Charge Up Your Creativity! ⚡

## Quick Answers

- **What is this?** Adafruit 259 , USB Li-Ion/LiPoly Charger, v1.2 by adafruit
- **How much does it cost?** € 29.94 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/15138929-adafruit-259-usb-li-ion-lipoly-charger-v1-2)

## Best For

- adafruit enthusiasts

## Why This Product

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

## Key Features

- • **📏 Ultra-Lightweight:** Weighs only 5.7 grams, making it perfect for portable projects.
- • **🔧 Assembled & Tested:** Comes fully assembled and tested, ready to use right out of the box.
- • **🔌 Effortless Charging:** Designed for seamless charging of single lithium-ion/lithium polymer batteries.
- • **📦 Bonus Cable Included:** Includes a free JST cable for added convenience.
- • **🌡️ Temperature Monitoring Ready:** Easily replaceable thermistor for high charge rate applications.

## Overview

The Adafruit 259 USB Li-Ion/LiPoly Charger v1.2 is a compact and efficient charging solution for single lithium-ion and lithium polymer batteries. Weighing just 5.7 grams, it’s designed for portability and ease of use, featuring a built-in 10K NTC thermistor for temperature monitoring. This product comes fully assembled and tested, along with a bonus JST cable, making it an ideal choice for tech enthusiasts and DIY projects.

## Description

This is a lithium ion and lithium polymer battery charger based on the MCP73833. It uses a USB mini-b for connection to any computer or 'USB wall adapter'. charging is done in three stages: first a preconditioning charge, then a constant-current fast charge and finally a constant-voltage trickle charge to keep the battery topped-up. The fast-charge current is 500MA by default, but is easily adjustable from 100MA up to 1000MA by soldering a through-hole resistor on-board. This board is great for DIY projects because it has 3 indicator LEDs - one for power, one for charging status and a third that indicates when charging is complete. You may also keep the battery connected to the charger and pass power through the additional jst connector using the included cable.

## Features

- Comes assembled and tested with a free bonus jst cable
- For charging single lithium ion/lithium polymer
- Weight: 5.7G ( 0.2Oz)
- Chip supports a 10K ntc thermistor which we have stuffed as a plain 10K. For people who require temperature monitors (using high charge rates), remove the 10K and solder in the thermistor in its place
- 0.1 inch

## Images

![Adafruit 259 , USB Li-Ion/LiPoly Charger, v1.2 - Image 1](https://m.media-amazon.com/images/I/61jrGIlyTFL.jpg)
![Adafruit 259 , USB Li-Ion/LiPoly Charger, v1.2 - Image 2](https://m.media-amazon.com/images/I/71aR3PXZlbL.jpg)
![Adafruit 259 , USB Li-Ion/LiPoly Charger, v1.2 - Image 3](https://m.media-amazon.com/images/I/51JLGrzE5oL.jpg)
![Adafruit 259 , USB Li-Ion/LiPoly Charger, v1.2 - Image 4](https://m.media-amazon.com/images/I/51by3RVHb+L.jpg)
![Adafruit 259 , USB Li-Ion/LiPoly Charger, v1.2 - Image 5](https://m.media-amazon.com/images/I/81qixkG7hJL.jpg)

## Questions & Answers

**Q: What do i solder to adjust from 500 to 1000 mAh?**
A: The max charge rate of the USB charger is about 1000 mA. To achieve this charge rate, you can either solder a 2.0K resistor on top of R4 (default 2K) - this will make the total parallel resistance 1.0K or you can remove R4 by desoldering it or cutting the trace to it and solder a 1.0K resistor in its place.

The max charge rate of the USB/DC charger is about 1200 mA. To achieve this charge rate, you should solder a wire (short) on top of RPROG (default 4.7K). You can also change the rate to a different value by either soldering a resistor on top of RPROG (and calculating the parallel resistance) or removing the resistor and soldering a different one in its place. See the schematic for what values result in what charge rates.

Important Note! Never charge a battery faster than 1C (so a 1300mAh battery should be charged at under 1300 mA) and we suggest staying at or below 0.5C Check the datasheet of the battery for more information about your cell
https://learn.adafruit.com/li-ion-and-lipoly-batteries/proper-charging

**Q: On the board there are solder points for a dc in, does this mean i can connect another method of charging to the board such as qi charging?**
A: Yes, one would use the USB port for the charger to plug in, the port labled 'BATT' would connect to the battery needing charging and the port labled 'LOAD' connects to the device needing to be powered.

**Q: What is the STR 2-1 input for?**
A: Did you mean STAT 2  1  ?
These stands for the two Charge Status outputs.

**Q: Will this work with a 3.7volt 2000mAh 7.4Wh Li-ion battery?**
A: Yes it will definitely work.  I've used this with an Adafruit 1500mAh, 2000mAh, and 2500mAh single cell Li-ion battery with no problems.  It takes a long time to charge but that's to be expected.  Yellow LED indicates charging, Green LED indicates your battery is fully conditioned and charged properly.  Use this with multi-cell 18650's at your own risk, it's not recommended because there is no balance charge circuit for multiple cells.  It's specifically designed for Adafruit's single cell Li-ion batteries.

## Frequently Bought Together

- Adafruit 259 , USB Li-Ion/LiPoly Charger, v1.2
- EEMB Lithium Polymer Battery 3.7V 1100mAh 603449 Lipo Rechargeable Battery with Wire JST 2.0mm Connector for Speaker and Wireless Device- Confirm Device & Connector Polarity Before Purchase
- Adafruit Lipo 4410 Micro Charger for LiPoly Batt with USB Type C Plug

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-27*