Uploaded April 2018 | Updated September 2026, 1 hour ago
This is very simple device. There is a schematic in the beginning of a video. Charge any battery no matter of voltage, capacity, amperage. Cannot be used for Li-Ion batteries. Alkaline's should be constantly monitored. Revive cordless drill battery pack with this or desulphate/charge car battery. You can even put in series as many batteries as you want and charge them simultaniously. This device I made from old UPS device and painted in black can even warm up your cup of tea or it can dry your socks... **If not treated properly this device can and will KILL you. First unplug device from AC mains before connecting/disconnecting battery terminals. Do not touch the terminals while charging. You have been WARNED **
This is very simple device. There is a schematic in the beginning of a video. Charge any battery no matter of voltage, capacity, amperage. Cannot be used for Li-Ion batteries. Alkaline's should be constantly monitored. Revive cordless drill battery pack with this or desulphate/charge car battery. You can even put in series as many batteries as you want and charge them simultaniously. This device I made from old UPS device and painted in black can even warm up your cup of tea or it can dry your socks... **If not treated properly this device can and will KILL you. First unplug device from AC mains before connecting/disconnecting battery terminals. Do not touch the terminals while charging. You have been WARNED **
