solar controller

[bobby]

hi all. I used the motorhome at the weekend. I checked the solar controller and all lights were full as if the batteries were fully charged but an hour or so later my inverter signalled low battery. does anyone think this could be the batteries or the controller? the batteries were new 3 years ago and they have always been fully charged whilst parked up using a battery charger plugged into it

tia

 

[mitzimad]

what load was you running on the inverter ?how big are your batteries

 

[bobby]

mainly just phone x 2 and 12v tv for an hour or so I would have said. the batteries are 2 x 110ah. we have had no problem in the past 3 years and never had this happen

 

[Stealaway]

What's the battery voltage now?

 

[bobby]

il have to check that tomorrow but usually is topped up full. I need to get a new battery for my multi meter

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[pappajohn]

You really need to disconnect the solar and charger if hooked up and wait an hour or so with everything turned off before checking the battery voltage at the batteries
Checking with the panel and hookup connected will show the charge voltage, not the true battery voltage