Spec

• Charger for lithium polymer (LiPo) battery with adjustable charging current
• Single cell lithium polymer (LiPo) battery and lithium-ion battery charger. The MCP73831 charging controller IC from Microchip is ***d. This charger can safely charge most single cell batteries with adjustable charging current ranging from 15 mA to 500 mA.
• You can connect the power from a microUSB cable or from a pin under the USB connector labeled GND and INPUT. Once the power is connected, you can install a single LiPo battery in the JST connector, the PTH pin marked BATT, or the 2450 coin cell holder on the back of the board. Two or more devices cannot be connected.
• [Note]
• *This product is shipped with all switches on. Before configuring the board, turn off all switches.
• Get Started with the SparkFun Adjustable LiPo Charger Guide
• Specifications
• Power supply voltage: 3.75 V to 6 V
• Adjustable charging current range: 15 mA to 500 mA
• Three battery input options
• JST Connector, PTH Pin, Coin Cell Holder (2450)
• LED for charge status display
• Charging level can be set.
• [Reference]
• Schematic
• Eagle Files
• Hookup Guide
• Datasheet (MCP73831)
• GitHub