{"title":"Adafruit Micro Lipo w/MicroUSB Jack - USB LiIon/LiPoly charger [v1]","handle":"adafruit-micro-lipo-w-microusb-jack-usb-liion-lipoly-charger-v1","url":"/products/adafruit-micro-lipo-w-microusb-jack-usb-liion-lipoly-charger-v1","description":"The Adafruit Micro Lipo with MicroUSB Jack is a compact charger for single-cell 3.7V/4.2V lithium polymer and lithium ion rechargeable batteries. Plug in any Micro USB cable to a USB power source and connect your battery via the JST connector — two LEDs show status at a glance (red = charging, green = complete). For a USB-C version, see the Micro-Lipo Charger with USB-C.\n\nCharging uses a three-stage process: preconditioning, constant-current fast charge, then constant-voltage trickle charge. The default 100 mA charge rate works safely with any battery size. For larger batteries (500 mAh+), solder the jumper on the front to increase the charge current to 500 mA.\n\nKey Features\n\n\nMicro USB Input – 5V charging from any Micro USB cable and power source\n\nThree-Stage Charging – Preconditioning, constant-current, and trickle charge\n\n100 mA Default Charge Rate – Safe for all battery sizes; adjustable to 500 mA via solder jumper\n\nDual Status LEDs – Red (charging) and green (complete)\n\nJST Battery Connector – Standard 2-pin JST for LiPo/LiIon batteries\n\nCompact Size – Small enough for desk use or permanent project mounting\n\n\nIdeal For\n\nCharging LiPo/LiIon batteries for portable projects\nWearable electronics with rechargeable batteries\nEmbedding in project enclosures for built-in charging\nQuick battery top-ups from any USB port\n\n\nPackage Contents\n\n1× Adafruit Micro Lipo Charger with MicroUSB (assembled and tested)\n1× 2-pin JST cable (bonus)\n\n\n\nWarning: For use with single-cell 3.7V/4.2V LiPo/LiIon batteries only. Not compatible with older 3.6V/4.1V cells or batteries with different chemistry, voltage, or polarity. Battery not included.\n","vendor":"Adafruit","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":14448,"title":"Default Title","sku":"AF-1904","price":14.32,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":102,"option1":"Default Title"}]}