Power cuts out when pump runs (on DC)
I have an new electric issue that I need to troubleshoot tomorrow and am looking for advice. On DC (2 x 6V) lights are good, power shows full (also metered at batteries 13ish). When the water pump ...
Forum Discussion
KD4UPL wrote:
Are you sure your batteries are good. Your voltage measurments are useless because your solar charger is holding the voltage up. Batteries do not have a resting voltage of 14.2, that is under charge of some kind. In fact, 12.8 is a little high for resting voltage. A fully charged 12 volt battery at "rest" will only read 12.7 volts. With a little load it will always be below 12.7 volts if there is no charging source present.
Unhook you solar charger, unplug from shore power, then measure your voltage with and without a load.
I haven’t had a lot of time to dig into it, but thanks as that’s a good idea to disconnect the panel. I’ve questioned the batteries from the get go as they are at least 5 hrs old, but if it was batteries why would it be intermittent? Unless there is a flakey cell I’d assume?
