# Lithium Ion Polymer Battery - 3.7v 500mAh

**Type:** Product page · **SKU:** ADA1578 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/lithium-ion-polymer-battery-3-7v-500mah.html ([markdown](https://core-electronics.com.au/lithium-ion-polymer-battery-3-7v-500mah.html.md))

## Retired product

This product is retired and no longer available for purchase. Replaced by: CE04375.

**Replacement:** https://core-electronics.com.au/catalog/product/view/sku/CE04375

## 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 500mAh for a total of about 1.9 Wh. If you need a larger (or smaller!) battery, [Adafruit have a full range of LiPoly batteries](https://core-electronics.com.au/#)

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/#) and at a rate of 150mA or less.** [We suggest Adafruit's Micro Lipo charger, which has a 100mA default rate.](https://core-electronics.com.au/adafruit-micro-lipo-usb-liion-lipoly-charger-v1.html) You can also set the Micro Lipo to 500mA rate for a faster charge.
Like most lipos, the batteries Adafruit sell do not have thermistors built in. This is why we suggest charging at 1 C or even less - 100 to 500mA is a good rate, and available from any USB port if using a USB-powered charger

**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.

Lithium Ion Polymer Battery - 3.7v 500mAh (3:06)

## Technical Details

Details:

- Weight: 10.5g
- Size: 29mm x 36mm x 4.75mm / 1.15" x 1.4" x 0.19"
- Power Lead Length: 80mm / 3"
- Output: 500mAh at 3.7V nominal[​](https://cdn-shop.adafruit.com/datasheets/523334%20500mAh.pdf)

 ![](https://core-electronics.com.au/media/wysiwyg/resources/rohs_icon.jpg)- MSDS Report
- [Datasheet](https://cdn-shop.adafruit.com/product-files/1578/C1854+PKCell+Datasheet+Li-Polymer+503035+500mAh+3.7V+with+PCM.pdf)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/1/5/1578-00.jpg)