The Adafruit USB Li-Ion/Li-Po Charger is a smart single cell LiPo battery charger based on the MCP73833 chipset. Charging can be done from any computer USB port or USB wall adapter using a USB mini-B Cable. Charging is performed 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. For people who require temperature monitors (using high charge rates), remove the 10K and solder in a thermistor in its place.
This board works well 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. Keep the battery connected to the charger and pass power through the additional JST connector using the included cable!
Please Note: For use with batteries we stock only! Other batteries may have different voltage, chemistry, polarity or pinout.
- 5V input via mini-B USB connector
- Separate JST connectors for battery and load system so batteries don't have to be removed for charging
- 500mA charge current, adjustable from 100mA to 1000mA by soldering in a resistor
- 0.1″ (2.54mm) breakouts for the battery, DC, and status LEDs
LiPo and Li-Ion Batteries: http://learn.adafruit.com/li-ion-and-lipoly-batteries
This product has a 30 Day Warranty from the date of delivery. The item must not be modified, abused, incorrectly hooked up, or used for purposes outside the original scope of design.
This product is returnable Within 14 Days of delivery for a store credit. Item must be unopened, unused, and in re-saleable condition.