The Astro 112D Digital Peak Charger/Discharger can charge any 2 to 40 cell Nicad or NiMH pack, from 50 mahr cells to 9,000 mahr cells. The 112 can also discharge packs and measure milliamp-hour capacity. Works from 12VDC. Includes matching connector!
Beacons are mounted on walls or ceilings to measure distance to other beacons and “hedgehog” using ultrasonic pulses. They communicate with router wirelessly in ISM band. Powered by LiPo battery or USB. Indoor Positioning System (IPS)