# Lithium-ion polymer battery 3.7V 2500mAh

Manufacturer: Adafruit  |  MPN: 328  |  Category: battery
Canonical: https://partsgraph.ai/catalog/parts/adafruit-lipo-2500
Image: https://partsgraph.ai/catalog/img/adafruit-lipo-2500.jpg (photo: Adafruit, CC BY-SA; sha256 e3f9f1f5e6b9)

## Attributes (each with provenance)

- **Capacity**: 2500 mAh
  - source: https://www.adafruit.com/product/328
  - quote: "Lithium Ion Polymer Battery - 3.7v 2500mAh : Adafruit Industries, Unique & fun DIY electronics and kit"
- **Nominal voltage**: 3.7 V
  - source: https://www.adafruit.com/product/328
  - quote: "Lithium Ion Polymer Battery - 3.7v 2500mAh : Adafruit Industries, Unique & fun DIY electronics"
- **Fully-charged voltage**: 4.2 V
  - source: https://www.adafruit.com/product/328
  - quote: "eries are thin, light, and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacit"
- **Protection cutoff voltage**: 2.8 V
  - source: https://www.adafruit.com/product/328
  - quote: "eans that the battery will cut out when completely dead at ~2.8V. It will also protect against output shorts. However, even"
- **Energy**: 10 Wh
  - source: https://www.adafruit.com/product/328
  - quote: "This battery has a capacity of 2500mAh for a total of about 10 Wh. If you need a smaller battery, we also have a 1200mAh mode"
- **Max charge rate**: 1200 mA
  - source: https://www.adafruit.com/product/328
  - quote: "/constant-current charger to recharge them and at a rate of 1200mA or less. Like most lipos, the batteries we sell do not have"
- **Connector**: JST-PH
  - source: https://www.adafruit.com/product/328
  - quote: "model The batteries come pre-attached with a genuine 2-pin JST-PH connector as shown and include the necessary protection cir"
- **Protection circuitry included**: yes
  - source: https://www.adafruit.com/product/328
  - quote: "e 2-pin JST-PH connector as shown and include the necessary protection circuitry. Because they have a genuine JST connector, not a knock-off"
- **Weight**: 50 g
  - source: https://www.adafruit.com/product/328
  - quote: "e battery to avoid accidental rips. Specifications: Weight: 50g Size: 1.9" x 2.3" x 0.29" (50mm x 60mm x 7.3mm) Output: 250"
- **Size**: 50mm x 60mm x 7.3mm
  - source: https://www.adafruit.com/product/328
  - quote: "ips. Specifications: Weight: 50g Size: 1.9" x 2.3" x 0.29" (50mm x 60mm x 7.3mm) Output: 2500mAh at 3.7V nominal Diagram UN38.3 Report Data"

## Vendors

- Adafruit: https://www.adafruit.com/product/328 (~USD 14.95, indicative as of 2026-08-18)

## Datasheets

- Battery product page: https://www.adafruit.com/product/328

Used in builds: weather-station (roles: battery)

Machine feed of the whole catalogue: https://partsgraph.ai/catalog/feed.json