Forum Discussion
aguablanco
Apr 22, 2017Explorer
Harvey51 wrote:
When using the voltmeter remember it just shows the charging voltage when charging and only gradually decreases over a few hours after charging ceases so you cannot find the per cent of full charge for a few hours after any charging. Also, drawing current from the battery decreases its voltage adding another complication to the voltage method. I wasted my first set of batteries relying on the idiot lights which use the voltage method.
This $29 battery monitor always shows the percent of full charge accurately and has positive reviews on this forum. The 25 amp version has worked very well for me for several years. Ebay.com battery monitor
The question I have is, can I hook this meter up using the wiring from the idiot light? That would be simpler for me if it is possible since I wouldn't have to run new wiring to the idiot light panel.
Thanks,
RichH
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