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 ...

In South Africa, where a stable electricity supply is never a certainty, a reliable backup power source is essential for ...

As power outages get more frequent, people who'd never much thought about residential home battery backup systems are probably ... uninterruptible power supply (UPS) — something gamers have ...