Main battery going flat

Discussion in 'Tech/Mech General' started by Gollom, Jan 24, 2016.

  1. Gollom

    Gollom Funster

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    When I first got Hetty I could leave for 2-3 weeks and she would start "on the button" with no problems at all. Since my stepson wired a plug socket in for me it does not seem to hold charge anymore beyond a few days. Could this be connected? I had assumed that the red charger box I can see not only kept the leisure batteries charged (which seem fine) but also kept the main battery topped up when on mains.

    Just coincidence, or could a relay or charger have blown somewhere?

    Thanks
     
  2. xsparks

    xsparks Funster

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    Without more details it would be difficult to know.Was it a mains socket or 12volts? I would suggest going to as was and see what results you get.
     
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  3. Badknee

    Badknee Funster

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    Yes I'll go along with this but also mention that cold weather takes it's toll on battery power, something like 50% is lost @ zero degrees or something like that.
    We have lads on here that are very well up on batteries. (y)
     
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  4. Flamenca

    Flamenca Funster Life Member

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    My Hymer mains charger whilst on EHU only charges the leisure batteries. I believe most Hymers of this age are the same. A solution might be fitting a 'Battery Master'.
     
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  5. Gollom

    Gollom Funster

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    Was a mains socket


    Hmmmmm. Something like this? https://www.roadpro.co.uk/retail/12...attery-control-products/battery-master-79.htm
     
  6. xsparks

    xsparks Funster

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    Check breakers and security of connections within the disturbed wiring .check for continuity of wires. No disrespects but how compitant is your stepson?
     
  7. Gollom

    Gollom Funster

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    None taken. Fairly newly qualified but the wiring colours caused a lot of confusion at first as they seemed to be a German specs, so he read up on the standards (someone on here was kind enough to give guidance. Due MOT very shortly so I'll get an auto-electrician to take a look
     
  8. mitzimad

    mitzimad Funster

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    unlikley to be his wiring unless he has disconnected part of the charging circuit
     
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  9. Flamenca

    Flamenca Funster Life Member

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    Not the one I was thinking of. Mine is rated at 4 amps rather than the device sold by Roadpro which is only 2 amps. I bought it on eBay. The following is the link for the device being sold in Italy but occassionaly you see them from a UK supplier.

    www.ebay.co.uk/itm/csb2-dispositivo-cbe-ricarica-batteria-camper-secondaria-device-for-charging-/171543974411?hash=item27f0d1520b:g:NtwAAOSwYshUZ9~F
     
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