Icharger 406 duo problem
So I got this charger a while back. It's been great. Wednesday night I was racing and came off the track kinda pissed about my race. Popped the lid off my buggy and unplugged it. I plugged in my charge leads. Instantly popped and smoked out of my first channel. Got hot. I unplugged the leads. Let it sit. Tried again. Glowed orange and smoked out of the first channel. What happened? I was upset but have it all color coded. I don't think I hooked it up backwards. I always stop the charger before I unplug the batteries. It was not on the beginning screen but not connected to anything so no current was running or it would have sparked at the leads ends right? What popped? Can it be fixed?
Ty, yes I'm fairly new to ichargers. I did buy this used. I have watched a bunch of YouTube videos. Iv not opened it yet.