The second picture looks like a pair of 6 volt batteries in series to get 12 volts, these would be the house batteries.
5 years is about all you get out of batteries so I do not see an issue.
When batteries loose charge they can freeze which damages the plates and kills them so a trickle charge once and a while will help.
__________________
__________________
1997 Silverton 362, 7.4 Crusaders
1997 2400 SCR, 5.7 Vortec / Bravo 2
Mike
|