IBDTrader
Jul 17, 2013Explorer
Dimm Lights / 9.35 volts
On shore power my lights get dimm and when I do voltage check it shows about 9.3 volts. ( on 50 amp service)Checked water in batteries all O K. batteries about 15 months. NOW This I don't understand. When I run engine for about 30 seconds light get bright and voltsge returns to about 11.80???????