seeker of wonder
Join Date: May 2010
Location: Where the oceans have no address.
Thanked 2 Times in 2 Posts
Rep Power: 6
I basically have the EXACT same problem right now, except I don't have the clicking sound coming from the charger. My shorepower charger is an older Guest 15/20 amp simple non-multi-step, 2-bank ferro-resonant charger.
On mine, I have checked the voltage at the charging wires themselves with no battery hooked up, and it reads a low 12.55 volts instead of its listed 13.8 volts. But when I put the terminals on a moderately discharged it'll read 11.40 volts and stay there in definitely, without bringing the battery up to charge in the least.
Because of this, I am thinking bad diodes or maybe internal windings in the charger haver gone bad. Anyone know if these chargers can be re-wound or replace the diodes...probably cheaper doing that than buying a new $300 charger, which I rather not do. Any ideas?
When I put an automobile charger on the batteries, they came up to life very quickly, so the problem is not the batteries.
"...and a star to steer her by."