Buy UltraFire HD 077B 18650 Lithium ion Battery Charger Black & Pay Later | humm
XTAR VP2 Independent 2-Channel Battery Charger w/ Dual Voltage Display, USB Power Bank for 18560 and similar Lithium Ion and LiFePO4 Cells (Simple Kit - no Car Charger included, A/C adapter only)
Everything You Need to Know About the 18650 Battery
How to set tp4056 for battery 18560 - Education and Teaching - Arduino Forum