Lithium Ion Polymer Battery - 3.7V 350mAh

Product ID: 2750
$6.95
Qty Discount
1-9 $6.95
10-99 $6.26
100+ $5.56

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 350mAh for a total of about 1.3 Wh. If you need a larger (or smaller!) battery, we have a full range of LiPoly batteries.

The batteries come pre-attached with a 2-pin JST-PH connector as shown and include the necessary protection circuitry. Because they have a high quality JST-or-compatible connector, the cable won't 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 and at a rate of 350mA or less. We suggest our Micro Lipo charger, which has a 100mA default rate.

Like most lipos, the batteries we sell do not have thermistors built-in. This is why we suggest charging at 1 C or even less - 100 to 350mA 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 the possibility of short circuits. Polarity matches all Adafruit LiPoly/LiIon chargers and boards, other brands may have reverse polarity and can destroy your battery. 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.

Play video: Beware of Bad Lipos - Collin’s Lab Notes #adafruit #collinslabnotes

Play video: LiPo Longevity - Collin’s Lab Notes #adafruit #collinslabnotes

Play video: Lithium Battery Shipping Restrictions

 

Technical Details

  • Weight: 8.2g
  • Dimensions: 36mm x 19.6mm x 5.2mm / 1.4" x 0.8" x 0.22"
  • Power Lead Length: ~10cm / 4"
  • Output: 350mAh at 3.7V nominal​

Revision History:

  •  As of June 10th, 2022 - The end of the JST cable is now taped sideways to the top of the battery to avoid accidental rips.
RoHS 2 2011 65 EU Compliant
RoHS 2 2015 863 EU Compliant

Learn

Create your own space blasting action game in MakeCode Arcade and play it on your Pybadge!
Craft a Hat that's Elegant Enough for a Royal Wedding
Make a magic costume unicorn horn that lights up with your touch
Classic ATmega328p tech with the new modern Feathers
See All Guides