Solar charger but still dead batteries
A few weeks ago my coach's batteries (coach is a 2009 fleetwood excursion 40x DP) were dead when I went to pull it out of storage . Completely dead - even the aux start would not work. Couldn't even...
Forum Discussion
Sam Spade wrote:
"over 12 volts" is not accurate enough.
It needs to be over 12.8 just to break even and prevent self discharge.
And the actual charging voltage should be measured at the batteries while everything is connected. With some controllers the voltage will change drastically with no load.
And lastly, the most common setups will charge the house batteries when the engine is running but NOT the other way.
got it, i'll have to measure the voltage at each individual battery during charging.
I'm not sure what you mean the common setups will charge the house batteries when the engine is running but not the other way. ca you clarify?
Looks like I'm going to have to charge all the batteries and test them individually or just take the coach in to have the batteries tested (the coach is going in on Thursday to replace the dishwasher, ATS and a TV, so maybe i'll have them do it then).
