I'm using a PC PS for 12v & 5v DC (fan speeds) and 240 VAC for the OTA heater ( 6 watt beer mat !!
) but I'm in a permanent Ob setup so
'batteries not included.'
12 V drives the mount, the fans and the ZWO Peltier when in use. 400 watts capacity so plenty of grunt although the Peltier can slow the fans marginally when it comes on.
Actually I should run a line to the 3 kwatt UPS cos if the power ever does go off (extremely unlikely !) and the lights all go out then THAT is when I'd like to be able to carry on imaging and guiding.