{"title":"SparkFun USB LiPoly Charger - Single Cell","handle":"sparkfun-usb-lipoly-charger-single-cell","url":"/products/sparkfun-usb-lipoly-charger-single-cell","description":"The SparkFun USB LiPoly Charger is a single-cell Li-Ion/Li-Polymer battery charging board based on the MCP73831T. It charges 3.7V LiPo cells at a selectable rate of 500 mA or 100 mA via a solder jumper, with power input from either USB or a barrel jack connector.\n\nThe board includes a SYS OUT JST connector that lets you power your project directly from the charger without disconnecting the battery — ideal for always-connected setups where charging and operation happen simultaneously.\n\nKey Features\n\n\nMCP73831T Charge IC – Reliable single-cell LiPo/Li-Ion charging\n\nSelectable Charge Rate – 500 mA or 100 mA via solder jumper\n\nDual Power Input – USB and barrel jack connector\n\nSYS OUT Connector – JST output for powering your project while charging\n\nBATT IN Connector – Pre-installed JST connector for battery\n\nStatus LED – Indicates charging state, with footprint for external LED\n\n\nIdeal For\n\nCharging single-cell 3.7V LiPo/Li-Ion batteries\nBattery-powered Arduino and IoT projects\nWearable electronics\nPortable devices requiring charge-while-running\n\n\nResources\n\nHookup Guide\nMCP73831T Datasheet (PDF)\nHardware Design Files (GitHub)\nSchematic (PDF)\n","vendor":"SparkFun","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":13076,"title":"Default Title","sku":"SF-PRT-12711","price":37.23,"on_sale":false,"in_stock":true,"available_quantity":107,"option1":"Default Title"}]}