@owashii@plush.city do you know if your UPS is double-conversion or not? a double-conversion UPS *always* goes through the battery, which means that there's literally zero interruption when power is lost, but also that the output inverter is a limiting factor no matter what, whether wall power is available or not
that sounds like it's what your problem is
-F
@owashii@plush.city the fact that mains power is just directly connected through, however, means that there's no limit on the current they can output (provided proper wiring is used) other than the limit on what it's plugged into (15 or 20 amps for a standard US residential circuit)
-F