Hopefully MEX will chime in but anyone else is welcome, of course. Looking to buy a VARIAC. I have a Harbor Freight manual charger that I use for equalizing and sometimes the finishing charge. The pro...
It is good to know that the dial should not be moved when there is a load on.
The unit referenced is rated at 500 VA. Give the battery charger 0.7 for power factor. 500 X 0.7 = 350 watts. Plenty for the 10 amp setting and enough for 20 amps. (20 x 12 = 240 / 0.7 = 343 watts)
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