UltraFire 3000mAh 3.7V 18650 Rechargeable Lithium Batteries Without Pr
LiCB 2Packs 6800mAh 18650 Battery Rechargeable Li-ion With Lithium Battery Holder case 3.7v Batteries Black(2 PCS)
Amazon.com: Rechargeable Lithium Ion Battery Pack - VIDAR 7.4V 6800mAh High Capacity Li-ion Battery Pack with JST PH2.54/2P Plug-in(Customizable) for Electronics,Toys,Lighting,Equipment : Health & Household