Forum Discussion
Matt_Colie
Jun 29, 2017Explorer II
mmoore43 wrote:
My multimeter reading settings jumps from 10v to 250v so it is hard to read exact measurements. I changed out the transfer switch today and I want to test whether it is now charging. About how long should it take for the 12 v batteries to down if I leave the lights on in the coach?
Mmoore,
Don't do that test. It will prove nothing you don't already know.
If you kill the house bank, you will shorten its useful life.
Go buy a better meter. It should have a 20VDC and 200VAC scales. The cheapy at Hazard Fright will do. I used to give them away before the depression killed my boat work business.
If the house bank is not in the 13.2 ~ 14.4 range on shore power. Test the supply connection to the converter. If it is not the same as the house AC receptacles, then find an electrician to fix that. If it is the same, your converter is toast.
If you go shopping for a new one, get one that says it is three or four stage. If your house mank is 2ea GC2s, you can use up to 60 amp. If it is "deep cycle" 12V batteries, they can not take that, stay with 45 amp.
Matt
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