![SparkFun Sunny Buddy - MPPT Solar Charger (MPPT) Solar Charger for Single-Cell LiPo Batteries LT3652 Power Tracking 2A Battery Charging Circuit: Amazon.com: Industrial & Scientific SparkFun Sunny Buddy - MPPT Solar Charger (MPPT) Solar Charger for Single-Cell LiPo Batteries LT3652 Power Tracking 2A Battery Charging Circuit: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/812fPeMFsKL._AC_UF350,350_QL80_.jpg)
SparkFun Sunny Buddy - MPPT Solar Charger (MPPT) Solar Charger for Single-Cell LiPo Batteries LT3652 Power Tracking 2A Battery Charging Circuit: Amazon.com: Industrial & Scientific
![Amazon.com: SparkFun ESP32 Thing Developement Board WiFi & microcontroller compatible with Bluetooth for IoT & prototyping projects w/ Integrated LiPo battery charger 4MB flash memory 3 to 3.6V operating range : Electronics Amazon.com: SparkFun ESP32 Thing Developement Board WiFi & microcontroller compatible with Bluetooth for IoT & prototyping projects w/ Integrated LiPo battery charger 4MB flash memory 3 to 3.6V operating range : Electronics](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/71Ho3ODPZUL.jpg)
Amazon.com: SparkFun ESP32 Thing Developement Board WiFi & microcontroller compatible with Bluetooth for IoT & prototyping projects w/ Integrated LiPo battery charger 4MB flash memory 3 to 3.6V operating range : Electronics
GitHub - sparkfun/Battery_Babysitter: Charge management and monitoring breakout for single-cell lithium polymer batteries.
GitHub - sparkfun/Photon_Battery_Shield: Battery Shield for the Spark Photon. Has a charging circuit, as well as a fuel gauge.
![Amazon.com: SparkFun ESP32 Thing Developement Board WiFi & microcontroller compatible with Bluetooth for IoT & prototyping projects w/ Integrated LiPo battery charger 4MB flash memory 3 to 3.6V operating range : Electronics Amazon.com: SparkFun ESP32 Thing Developement Board WiFi & microcontroller compatible with Bluetooth for IoT & prototyping projects w/ Integrated LiPo battery charger 4MB flash memory 3 to 3.6V operating range : Electronics](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/41kijzu269L.jpg)
Amazon.com: SparkFun ESP32 Thing Developement Board WiFi & microcontroller compatible with Bluetooth for IoT & prototyping projects w/ Integrated LiPo battery charger 4MB flash memory 3 to 3.6V operating range : Electronics
![SparkFun Sunny Buddy - MPPT Solar Charger (MPPT) Solar Charger for Single-Cell LiPo Batteries LT3652 Power Tracking 2A Battery Charging Circuit: Amazon.com: Industrial & Scientific SparkFun Sunny Buddy - MPPT Solar Charger (MPPT) Solar Charger for Single-Cell LiPo Batteries LT3652 Power Tracking 2A Battery Charging Circuit: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/81owQwRViZL._AC_UF350,350_QL80_.jpg)