Lithium Ion Battery - 2Ah - PRT-13855 - SparkFun Electronics

DA16200 Thing Plus Hookup Guide - SparkFun Learn

Skinny (Compatible with Arduino) - DEV-08689 - SparkFun Electronics

Arduino Fio - DEV-10116 - SparkFun Electronics

Lithium Ion Battery Pack - 2.2Ah (USB) - TOL-14169 - SparkFun

ESP32 Thing Plus Hookup Guide - WRL-15663 by SparkFun Electronics

Description Features Documents These are very slim, extremely light weight batteries based on Lithium Ion chemistry. Each cell outputs a nominal 3.7V

Lithium Ion Battery - 850mAh

Arduino Fio - DEV-10116 - SparkFun Electronics

SparkFun Thing Plus Matter - MGM240P Hookup Guide - SparkFun Learn

Description Documents If you need to charge LiPo batteries, this simple charger will do just that, and do it fast! The SparkFun USB LiPo Charger is a

SparkFun USB LiPoly Charger - Single Cell

SparkFun 5V/1A LiPo Charger/Booster Hookup Guide - SparkFun Learn

PRT-13856 SparkFun Electronics $26.9379/ 1 SPQ, 3 Original Parts

Description Documents If you need to charge LiPo batteries, this simple charger will do just that, and do it fast! The SparkFun USB LiPo Charger is a

SparkFun USB LiPoly Charger - Single Cell

Description Documents If you need to charge LiPo batteries, this simple charger will do just that, and do it fast! The SparkFun USB LiPo Charger is a

SparkFun USB LiPoly Charger - Single Cell

Elektor DIY LiPo Supercharger Kit (by GreatScott!) - KIT-18004