Battery storage cases and organizers hold spare batteries to prevent them from getting lost within a toolbox or office drawer and to shield their terminals from contact with materials that can cause short circuits or leaks. These organizers also separate batteries by size for tracking inventory and saving time when replacing batteries. Sometimes called battery holders, battery organizers are often used by maintenance workers and military personnel to provide a travel case for keeping batteries at hand to make in-the-field replacements.

Batteries and battery chargers provide power and portability to electrical devices and equipment. Original equipment manufacturer (OEM) batteries can replace manufacturer-specific batteries incompatible devices such as cordless tools, lanterns, and two-way radios. Disposable, household batteries are commonly used in low-drain devices such as flashlights, remote controls, clocks, and smoke detectors. High-performance batteries provide increased capacity to handle spikes in power demand from high-drain devices such as digital cameras, thermal imagers, digital audio, drones, video game controllers, GPS equipment, and keyless entry systems. Rechargeable batteries can be used repeatedly without the need for constant replacement. Battery chargers replenish the power of depleted rechargeable batteries.