dedmiston wrote:
Hey Dave - Do you have the stock converter or have you ever upgraded yours?
Those IOTA "Smart" Chargers that WW used aren't that great. They manually support two phases: The default phase is a horrible trickle that pretty much never ever charges the batteries. The second phase is a bulk charge that will boil over your batteries if you leave it on too long. Damned if you do, damned if you don't.
Two switch between the phases, there's a little resistor looped into an RJ11 phone connector. It's been forever since I used it, but it shouldn't be too hard to figure it out. If that thing is plugged in, then remove it to switch to the bulk phase. Just remember to replace it after a few hours to move back to the lower charge.
You've been patient to use that converter for so many years. It's worth upgrading to a better multi-phase converter or even a smart inverter/charger.
I concur with Dave. replace that converter, you've probably killed the batteries since they're 4 years old connected to a crappy converter. Contact Randy at Bestconverter.com, he helped me out a couple of times and never steered me wrong.