Our van has not moved from its shed since early November and it has not had power plugged to it. I went in it yesterday to get something and. the solar regulator was warbling and the battery voltage was reading 8.3 V. The internal lights would not come on so I plugged the power in, the lights then worked but the voltage stayed the same. I left it for a few hours and then checked it again but it had only gone up to 8.5 V.
I then hooked up my battery charger (Projecta 6200 smart charger) direct to the battery and immediately it started to show 12.9-13.2 V so I left it hooked up overnight. By morning it was a steady 13.5 v so I unplugged the Projecta and left it to the inbuilt charger. Late this afternoon it was reading 13.1 V while still plugged in to 240V. There is nothing running on 12 V in the van so I don't know what is dropping the battery voltage and also why is the Setec not keeping it fully charged?
Any suggestions welcome.
I then hooked up my battery charger (Projecta 6200 smart charger) direct to the battery and immediately it started to show 12.9-13.2 V so I left it hooked up overnight. By morning it was a steady 13.5 v so I unplugged the Projecta and left it to the inbuilt charger. Late this afternoon it was reading 13.1 V while still plugged in to 240V. There is nothing running on 12 V in the van so I don't know what is dropping the battery voltage and also why is the Setec not keeping it fully charged?
Any suggestions welcome.