Adafruit Universal USB / DC / Solar Lithium Ion/Polymer charger [bq24074] : ID 4755 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits
power supply - Step up converter (3.7V to 5V) that will also charge battery! - Electrical Engineering Stack Exchange
Amazon.com: Fisca Spare Rechargeable 3.7V 800mAh Lithium Ion Battery with USB Charger, SM 2P Connector for RC Stunt Car : Toys & Games
Make A Simple 3.7v Li-ion Battery Charger Circuit Using TC3582DA IC - TechSaw
LiPo USB Charger Hookup Guide - SparkFun Learn
Can I charge the 3.7V battery cell with this power supply (12V charger) ? And how long should I charge it : r/ElectroBOOM
Pin on A2A circuit
Lithium Ion Battery Charger Circuit (with Diagrams)
Make a 3.7v lithium iron battery charger and protection circuit at home|lithium iron battery charger. | Make a 3.7v lithium iron battery charger and protection circuit at home|lithium iron battery charger...