The lithium-ion Maxell CR17335A battery is a 1650mAh battery with a capacity of 6V. The battery can be charged at any voltage from 0.2V to 6.5V. This lithium-ion battery is perfect for many different uses batteries are used in many products such as electronics, toys, wireless headphones, handheld power tools, small and large appliances, electric vehicles, and electrical energy storage systems.