Keeppower 14500 - 1100mAh Li-Ion 3.7V - 3.6V with USB charging facility and PCB P1411U | akkuteile.de
Amazon.com: PKCELL ICR17500 Battery 3.7V 1100mah A Size Lithium Rechargeable Batteries with Flat Top 2pcs(They are not 1865mm Size Battery) : Health & Household