Dear friend,How are you? We are professional battery manufactuer in China for 10 years, and known for high quality and good price.Our batteries are widely used in meters,security equipments, toys,electric vehicles and drones.Some of our batteries are listed below,and customized battery packs also can be made according to requirements. LiSOCL2 battery ER14250 3.6V 1/2AA 1200mAh ER14505 3.6V AA 2400mAh ER18505 3.6V A 3600mAh ER26500 3.6V C 9000mAh Lithium ion rechargeable battery 21700 3.7V 4000mAh 18650 3.7V 2600mAh 26650 3.7V 5000mAh LiFePO4 battery IFR18650 3.2V 1500mAh IFR26650 3.2V 4000mAh IFR32700 3.2V 6000mAh LiMnO2 battery CR123A 3V 1500mAh CR14250 3V 600mAh Warmly welcome to contact me if you are interested in our batteries. Best wishes Henry