Battery Problems
Question 1
Do several 12-volt systems act weak at the same time?
Question 2
Does the problem improve when plugged into shore power?
Question 3
Does voltage drop quickly when the pump, furnace, or slide runs?
Question 4
Are the batteries old, deeply discharged, or recently below about 12 volts for a while?
Question 5
Do you see swelling, leaking, heat, burnt wires, or corrosion damage?