# Lithium Ion Polymer Battery - 3.7v 1200mAh

**Type:** Product page · **SKU:** ADA258 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/lithium-ion-polymer-battery-3-7v-1200mah.html ([markdown](https://core-electronics.com.au/lithium-ion-polymer-battery-3-7v-1200mah.html.md))

## Retired product

This product is retired and no longer available for purchase. Replaced by: CE04377.

**Replacement:** https://core-electronics.com.au/catalog/product/view/sku/CE04377

## Description

Lithium ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of 1200mAh for a total of about 4.5 Wh. If you need a larger battery, [We also have a 2500mAh+ model](https://core-electronics.com.au/lithium-ion-polymer-battery-3-7v-2500mah.html)

The batteries come pre-attached with a genuine 2-pin JST-PH connector as shown and include the necessary protection circuitry. Because they have a genuine JST connector, not a knock-off, the cable wont snag or get stuck in a matching JST jack, they click in and out smoothly.

The included protection circuitry keeps the battery voltage from going too high (over-charging) or low (over-use) which means that the battery will cut-out when completely dead at 3.0V. It will also protect against output shorts. However, even with this protection **it is very important that you only use [a LiIon/LiPoly constant-voltage/constant-current charger to recharge them](https://core-electronics.com.au/usb-liion-lipoly-charger-v1-2.html) and at a rate of 500mA or less.**
Like most lipos, the batteries Adafruit sell do not have thermistors built in. This is why we suggest charging at 1/2C or even less - 500mA max in this case which is how much you can get from a USB port.

**Additional safety notes:** Do not use a NiMH/NiCad/lead-acid charger! Also, do not abuse these batteries, do not short, bend, crush or puncture. **Never charge or use unattended. Always inspect batteries and surrounding circuitry constantly for any damage, loose wiring, or possibility of short circuits.** As with all Lithium ion polymer batteries and with any power source - they should be used by experts who are comfortable working with power supplies

## Technical Details

- Weight: 23g
- Dimensions: 34mm x 62mm x 5mm / 1.3" x 2.4" x 0.2"
- Output: 1200mAh at 3.7V nominal
- [Battery datasheet](https://cdn-shop.adafruit.com/datasheets/503562%201200mah.pdf)
- [Battery test report](https://cdn-shop.adafruit.com/datasheets/503562%201200mAh%20report.pdf)
- [MSDS Report](https://system.netsuite.com/core/media/media.nl?id=1760869&c=1327152&h=dd21074dd6e7416e6499&_xt=.pdf)

 ![](https://core-electronics.com.au/media/wysiwyg/resources/rohs_icon.jpg)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/2/5/258-00.jpg)