I have the above charger for several years. Today I went to storage charge 2 batteries. The charger had been in my truck for a few days under the seat. We have had foggy morning but no cold.
I plugged the a/c side into the same plug I used to charge the batteries. It beeped to turn on, the LCD screen popped up as usual then I heard a pssst and a puff of smoke came out the vents. The screen went blank. I tried a different plug. Nada..I went to the truck and hooked up the DC clips. The screen came back up. I storaged the batteries.
So what have I blown on the AC side.