Amazon.com: ICR17500 Battery 3.7V 1100mah A Size Lithium Rechargeable Batteries with Flat Top 2pcs(They are not 1865mm Size Battery) : Health & Household
Amazon.com: WISSBLUE 18650 Battery Charger, LCD Screen Can Display Capacity, 2a Fast 18650 Charger, Suitable for 3.7v Lithium Battery and 1.2v Ni-Mh/Ni-Cd AA AAA Battery : Everything Else