(Continued from Part 2.) Battery Drain While I briefly mentioned battery drain earlier it’s worth going into a bit more detail. Drain rate describes how fast a device uses power when a device is in operation. Examples of high-drain devices include things like digital cameras, GPS devices, portable gaming consoles, high-lumen LED flashlights, radios (when transmitting) and motorized devices like power tools. Some low-drain devices include television remote controls, wall clocks, smoke detectors, and red dot sights. Rapidly draining a battery’s charge can significantly shorten its life, so choosing the right type of battery for each type of device is … The post Mobile Device Battery Management – Part 3, by J.M. appeared first on SurvivalBlog.com.