A&S Power Rechargeable lithium battery cell 3200mAh 3.7v 18650 customized Li-ion battery for digital products | Shenzhen A&S Power battery
Amazon.com: ICR10440 Lithium Ion Rechargeable Battery 3.7V 350mAh with USB Charger (2pc Button top +Charger)(They are not AA Size Battery) : Health & Household