LY, I have the same pot as your el cheapo chineseium version. Or the same letter code on it... remember verifying it last week from smart phone pics to my mega watt... was beginning to think I got ripped off on the Mega Watt, when you blue smoked yours. Especially after seeing 40 amps drop off an amp a second one really cold morning to 20 amps in 20 seconds... I was wondering if I was going to follow suite with a poof, crackle, pop.
I don't own any AGM batteries, so I can't verify for you what an AGM paired to a Mega Watt would do to the power supply system. It may very well be that these are either suited better to open valve flooded Lead Acid, and the AGM requires pairing of power supplies or something more robust to pump out all the amps an AGM can take while bulk charging.
