1* Micro USB 5V Lithium Li-ion 18650 Battery Charger Module Board DIY Power Bank - Walmart.com
Dual USB 5V 1A 2.1A Mobile Power Bank 18650 Battery Charger PCB Module – eElectronicParts
2 x TP4056 5V Micro USB 1A 18650 Lithium Battery Charger Module Board – Everything Pi
1PCS Micro USB 5V 1A 18650 Lithium Battery Charger Module Charging Board With Protection|charging board|battery charger modulecharger module - AliExpress
Lithium Battery Charger Module Board 5V-32V to 0.8V-30V 5A LED Driver Step Down Buck Converter Board Constant Current Voltage - Walmart.com
8W 3V 3.7V to 5V DC DC Boost Step-up Converter Power Supply Module for Solar mobile phone smartphone Li ion battery charger [DD2424SA_5V] - USD $2.99 : canton-electronics.com