The APS batteries are small yet powerful elements that provide sufficient operation time for the Pulsar Axion, Pulsar Merger, Pulsar Digex, Pulsar Proton, Pulsar Talion, and Pulsar Thermion. They are simple to swap and can be easily changed in the field. The flat battery can be charged in the designated charging station (included in the package) or in the unit connected to a power source via USB.