Power up & save on a top battery backup this Black Friday with a great deal on this APC ...
The APC Back-UPS BX950MI is a line-interactive uninterruptible power supply (UPS) designed to provide battery backup and ...
Hackaday12 年
UPS With Dead Batteries Reborn As A Whole-house Power Backup
The UPS still needs to have a case ... which can automatically patch between incoming line voltage, and the battery backup. He already had one of these switches in place for use with a generator ...