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LiPo Battery Charger for 3.7V Cells, micro-USB, 4.2V MCP73831 US$9.95

PRT-10217
LiPo Battery Charger for 3.7V Cells, micro-USB, 4.2V MCP73831


The LiPo Charger Basic uses a Microchip MCP73831T-2ACI/OT charge management controller to charge 3.7V single-cell Lithium-Ion or Lithium-Polymer batteries at a rate of 500mA per hour.

The board incorporates a charging circuit, status LED, connector for your battery (JST type), and the micro-USB connector. A small mounting hole allows this charger to be embedded into a project easily. The board measures 29.4 10.8 mm. Two through-hole pads are provided in case you need to install header pins to connect a battery that does not have a JST connector.

Instead of requiring a PC's USB power, you might consider the TOL-11456 wall-mount 5V, 1A power supply that uses a USB cable for delivery.

MCP73831T-2ACI/OT Specifications

  • Regulated Output Voltage (Vreg): 4.20V
  • Precondition Current Ratio (Ipreg/Ireg): 10
  • Precondition Voltage Threshold Ratio (Vpth/Vreg): 66.5
  • Charge Termination Current Ratio (Iterm/Ireg): 7.5
  • Recharge Voltage Threshold Ratio (Vrth/Vreg): 96.5
  • Temperature range: -40 to +85 C
Be sure to read the datasheet below and the datasheet of your battery to make sure this charger will work with your battery.

Note: The micro-USB and JST connectors are mounted on the board not through it, so try to avoid excessive and sideways force.

Basic micro-USB LiPo Charger Resources


Optional Recommended Products for this Item
Rectangular Pin Header, Male, 1x40 Single Row, 2.54mm Spacing+ US$0.75
USB 2.0 Cable, 6ft. A-Male / Micro-USB (5-pin) B-Male+ US$6.00
2-pin Female JST Connector, 2mm pitch, with 5-inch Wires+ US$0.95

This product was added to our catalog on Thursday 01 December, 2011.

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