Head and body protective equipment, namely, protective combat helmets, face-protection shields, mandible protectors in the nature of body armor, neck protectors in the nature of body armor, and ballistic body armor protection in the nature of body armor; Ballistic body armor protection in the nature of body armor; Modular protection and attachment systems in the nature of front mount or side rails specially designed for combat helmets, which may be customized either with or without a visor and mandible guard, and which allow for the attachment of a range of capability enhancing devices such as flashlights, cameras, electro-optical surveillance devices and related accessories; Batteries, battery chargers; battery monitoring devices, namely, analog and digital monitoring modules that may be attached to one or more electric storage batteries to monitor the performance, capacity and health of the battery and operating software for use in analyzing and evaluating battery function, sold as a unit; battery packs; monitoring devices for monitoring battery performance characteristics; lithium ion batteries, lithium ion phosphate batteries, lithium phosphate batteries; power controllers for controlling power flow between electric storage batteries and military equipment; power distributing boxes; rechargeable electric storage batteries; renewable battery system to provide backup power