Batteries not holding charge ???
I have 2 year old deep cycle Interstate batteries, usually they hold a charge for about 2 months but recently its much shorter than before. Is there a way to check the RV charging system? When I plug ...
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Idiot lights are for the salesman to explain what a great charging system the RV has...
Buy a digital voltmeter for $10-20. With a dishcarged battery the battery voltage at the battery terminals should ramp up to 14.4V (bulk charging), then hold at 14.4V while the amps taper down (absorb charging) and then volts and amps taper down to float mode of 13.6V.
There are many posts on chargers that don't charge correctly especially WFCO and many have replaced that alleged charger.
If the plates are not completely covered with water the batteries are compromised. Have the batteries load tested by a good battery shop, an auto store is not a good battery shop.
Buy a digital voltmeter for $10-20. With a dishcarged battery the battery voltage at the battery terminals should ramp up to 14.4V (bulk charging), then hold at 14.4V while the amps taper down (absorb charging) and then volts and amps taper down to float mode of 13.6V.
There are many posts on chargers that don't charge correctly especially WFCO and many have replaced that alleged charger.
If the plates are not completely covered with water the batteries are compromised. Have the batteries load tested by a good battery shop, an auto store is not a good battery shop.
