- Feb 24, 2013
- 13,109
- 101,575
- Funster No
- 24,833
- MH
- Hymer S800
- Exp
- not long enough
we bought our new to us Hymer exactly 4 years ago, immediately found the batteries were duff and changed them, they were just under 4 years old when changed
turned out one battery out of the 2 fitted was duff, dragging the pair down to a useless level, decided then it wasn't the end of the world and gave away the good old one, weighed in the other
now we seem to be having issues, so far I have not disconnected the batteries to check individually as that needs tools and some nouse, so will end up getting the job done
question is this
after 4 years should I just expect this and buy 2 more at around £250 each (when bought last time)
how bad is it to change just one battery, or should I just bite the bullet and change them both again, I cant recall the make now but they were recommended on here and are GEL 100ish Amp / hrs
the reason I think they are failing is after only a few hours off grid or after parking, the battery volts display on the controller drop from around 13V to 12.2 - 4. In fairness I have often had a small inverter plugged in to charge something (having forgotten to do it while travelling ) the inverter draws around 6A when first plugged in, dropping to 2A after a bit, so not a huge draw.
I did notice though a disappointing draw from a newly fitted Omnistore awning light (full 5.5m length LED) taking over 3A, seems a lot and they had been on for a few hours when I noticed we were down to 12.2 V first time
But even if were drawing say 5A for 6 hours before going to bed, the leaving the Alde heating pump on all night (not checked the current on that) but only on with thermostat, is 12.2V in the morning about right?
I bet that could have been condensed to 2 or 3 sensible lines of text, so sorry for the waffle
turned out one battery out of the 2 fitted was duff, dragging the pair down to a useless level, decided then it wasn't the end of the world and gave away the good old one, weighed in the other
now we seem to be having issues, so far I have not disconnected the batteries to check individually as that needs tools and some nouse, so will end up getting the job done
question is this
after 4 years should I just expect this and buy 2 more at around £250 each (when bought last time)
how bad is it to change just one battery, or should I just bite the bullet and change them both again, I cant recall the make now but they were recommended on here and are GEL 100ish Amp / hrs
the reason I think they are failing is after only a few hours off grid or after parking, the battery volts display on the controller drop from around 13V to 12.2 - 4. In fairness I have often had a small inverter plugged in to charge something (having forgotten to do it while travelling ) the inverter draws around 6A when first plugged in, dropping to 2A after a bit, so not a huge draw.
I did notice though a disappointing draw from a newly fitted Omnistore awning light (full 5.5m length LED) taking over 3A, seems a lot and they had been on for a few hours when I noticed we were down to 12.2 V first time
But even if were drawing say 5A for 6 hours before going to bed, the leaving the Alde heating pump on all night (not checked the current on that) but only on with thermostat, is 12.2V in the morning about right?
I bet that could have been condensed to 2 or 3 sensible lines of text, so sorry for the waffle