BAT-C-IP5328P 3.7V to 5V 9V 12V Step up Fast Quick Charger Circuit Board QC2.0 QC3.0
his IP5328P Dual USB 18650 Battery Charger treasure Type-c 3.7V to 5V 9V 12V Step up Fast Quick Charger Circuit Board QC2.0 QC3.0 is a fast charge power management SOC.
USB / DC / Solar Lithium Ion/Polymer charger - v2
NOTE: This product is only designed for use with solar panels sold at the Adafruit store. We cannot guarantee this will work with solar panels purchased elsewhere. Please purchase this kit and panels from Adafruit to ensure optimized functionality! A 2.1mm adapter cable is also required to adapt a solar panel to the DC power jack.
SparkFun Battery Babysitter - LiPo Battery Manager
The SparkFun Battery Babysitter is an all-in-one single-cell Lithium Polymer (LiPo) battery manager. It’s half battery charger, half battery monitor, and all you’ll ever need to keep your battery-powered project running safely and extensively.