All of the chargers had blown thier fuses, and three of the six had significant heat damage. I tried replacing the fuses but the damaged ones still did not function. A quick disection reveals the transistors smoked themselves - note the burn marks on the heat sink.
I'm no longer a fan of the ACI chargers. In fact I was pretty upset at ACI for building such a crummy product, for a while. But you get what you pay for and they are cheap.
The bigger question was what am I supposed to charge my SLA's with? I proceeded to plug in Ole' Reliable: my Deltran Battery Tender Plus. The Battery Tender only charges at 1.25A, so it's slow and I could only charge one battery at a time.
The other question, is are the batteries still any good? After two days on the charger, the 17AH batteries seemed to be holdin a charge OK and voltages looked almost normal, but two were slightly lower than the others. Suspect cells were at 12.7V and 12.9V vs. 13.1-13.3V for the others.
A trip down the street and back, the bike seemed to run fine. Then I took El Gixxer around the block a few times and the batteries started to feel sluggish - so I gave the throttle a little more wrist. Oops! A high pitched squeal pierced the air - I thought it was a controller alarm, so I let off the throttle and the sound went away. Then I heard a sound like a pressure cooker belching steam and looked down to see the #5 cell spewing gas only inches from my knee. The controller went into Limp mode and I barely made it back to the garage.