Smart-UPS 1500 turned into... a 12V inverter?!

In this video, I show off a 24 V Smart-UPS 1500 that I turned into a 12 V inverter.

The modifications required to do this involve gutting two UPSes and modifying a single resistive divider on the mainboard to fool the processor into thinking that it's got a 24 V battery connected.
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Видео Smart-UPS 1500 turned into... a 12V inverter?! канала FFcossag