USB Lion/Lipoly Charger

This is a Lithium Ion and Lithium Polymer battery charger based on the MCP73833. It uses a USB mini-B for connection to any computer or 'USB wall adapter'. 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.The chip supports a 10K NTC thermistor which we have stuffed as a plain 10K. For people who require temperature monitors (using high charge rates), remove the 10K and solder in the thermistor in its place 0.1" (2.54mm) breakouts for the battery, DC, and status LEDs.

Quick Spec

  • Comes assembled and tested with a free bonus JST cable!
  • or charging single Lithium Ion/Lithium Polymer 3.7/4.2v batteries (not for older 3.6/4.1v cells)
  • 500mA charge current, adjustable from 100mA to 1000mA by soldering in a resistor
  • Separate JST connectors for battery and load system so batteries don't have to be removed for charging

Resources

Shipping List

  • 1 x USB Lion/Lipoly charger


USB Lion/Lipoly Charger

  • Brand: Adafruit
  • Product Code: AF259
  • Stock

    Warehouse Stock Status Location
    Centurion Out Of Stock C97
    Stellenbosch In Stock X0134
  • R260.00 (Inc Tax: R299.00)


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Tags: usb, lipo, lipoly, lion, power, solar, battery, 3.7v