Amazon.com: SPARKOLE 7.4V 2500mAh Li-ion Rechargeable Battery for Speaker/Remote Control Toy/Bluetooth Boom Box/Portable DVD Player/Outdoor Lighting : Toys & Games
12v 2500mah 12v dc rechargeable li ion battery pack portable for Wireless Transmitter, CCTV camera, LED lights - Lithium polymer Li-polymer 3.7V Custom 18650 Lithium Ion battery pack, 18650 batteries, battery housing