best way to test house batteries ?
Hello Everyone… I have a 2003 Ford F-53 RV What’s the most accurate way to test house batteries using multimeter and hydrometer? Disconnect from shore power then keep few lights on inside the R...
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opnspaces wrote:MountainAir05 wrote:
I test with them separate. Then check each with the hydrometer after they set for an hour or so. I also check each cell with the volt meter after the hydrometer test.
How do you check an individual cell with a volt meter?
With most modern automotive wet cell batteries, . . . you can't. You can only check the total individual battery voltage. (without damaging the battery casing) With some older automotive wet cell batteries, like pre 1970's, you quite easily could. With some modern industrial wet cell batteries you still can. Tesla, Hybrid batteries (Li-ion), . . . you usually can. These batteries aren't generally used in RV applications.
Chum lee
