Help required to top up / charge vehicle battery

Discussion in 'The Beginner' started by PCB, Oct 10, 2015.

  1. PCB

    PCB

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    I have a 120w solar panel on the roof which is doing a good job charging my 2 leisure batteries, but the vehicle battery is in need of topping up, so the question is what switch or system do I need to do this (in simple terms please)
     
  2. John & Joan

    John & Joan

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    You could simply link the batteries together. The charge will even out by discharging the ones on Solar to the vehicle battery bringing them all to the same level, then the whole bank will charge from the Solar.
     
  3. PhilandMena

    PhilandMena Funster

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    In simple terms. Make sure the ignition is off. Unscrew the battery plugs for each compartment and top up each cell with Ionised (distilled) water, just above the plates.
    Wear gasses to protect your eyes and wash off immediately any acid spillage from the battery.
    Replace plugs. Job Done.
     
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  4. PhilandMena

    PhilandMena Funster

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    Not best advice John. Keeping the cab battery separate from the leisure batteries will ensure the vehicle will start if the leisure batteries are accidentally run down. Besides, other gent only wanted advice on topping up battery level. :)
     
  5. gus-lopez

    gus-lopez Funster

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    I have 2 separate supplies from the solar controller , one to leisure batteries & other to the engine battery. Each has a fuse to isolate in it just before the battery connection.
     
  6. gus-lopez

    gus-lopez Funster

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    I read it as he needed the power topped up for the engine battery. Bit ambiguous.:(
     
  7. PhilandMena

    PhilandMena Funster

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    On my Solar Panel regulator/controller there are also two cables. One from the solar panel and one to the leisure batteries. Even if one of the cables from PCB's controler is going to his cab battery he will be quite safe topping his battery up without disconnecting the supply.
     
  8. PhilandMena

    PhilandMena Funster

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    LOL! You may well be right and it's me who's got it the wrong way round. Wouldn't be the first time.
     
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  9. daveandsan

    daveandsan Funster

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    @PCB, you need a battery master or a CBE CSB2 to keep you engine battery topped up.
     
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  10. Don Quixote

    Don Quixote Funster

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    I think you need to fit a battery master ( see Jim's shop ) it's a fit and forget device and you should not have any problems with your vehicle battery.
    This year we parked up for 3 weeks in the UK without moving and let the solar panels do what they do best. Granted I have 200watts going into 330amps of batteries, but even drawing 5/7 amps every night from around 5pm to 11pm had no problems. This included wife using hair dryer and hair straighter via inverter.
    During the day the battery master feed the vehicle battery from the leisure batteries via solar panel giving me 12.7 in the vehicle battery across the 3 weeks without starting vehicle and using alarm each day and night. Worth every penny.
     
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  11. pappajohn

    pappajohn Funster Life Member

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    Thats how it read Phil, but you know what was meant was topping up the battery CHARGE state hense the mention of the hab battery soc and switch type.
     
  12. jollyrodger

    jollyrodger Funster Life Member

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    Look on eBay for duo solar regulator 20amp auto charges both banks of batteries works s treat fit and forget
     
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  13. Boringfrog

    Boringfrog Funster

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    Surely if your starter battery is not using any power it should last Weeks if not Months?
     
  14. Terry

    Terry Funster Life Member

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    Another vote for Dual charge control (y)ABOUT £30 ish
    terry
     
  15. daveandsan

    daveandsan Funster

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    Alarms.
     
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  16. Boringfrog

    Boringfrog Funster

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    That shouldn't use a vast amount of your power. And is the OP talking about when away camping or just parked up on the drive?
     
  17. funflair

    funflair Funster Life Member

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    Well ours doesn't last long that's for sure but we have the CBE CSB2 or whatever it is as standard so that looks after the engine battery as long as there is solar or something to the hab batteries.

    Martin
     
  18. bartiny

    bartiny

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  19. jollyrodger

    jollyrodger Funster Life Member

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    Look in manual by default batt 1 start gets 80% aux 20% but this can be changed 50/50 for example I have mine set 80% aux X2 parallel 2o% aux bat 1 0riginal aux .batt could /should be engine stater batery .but the system is fed buy 250W 12v panel producing 30+most days and the 2 in paralell feed the inverter.and the original battery takes care of the hab lights etc .at any time I can throw a switch to put charge in starter battery plenty of experts on here but this works for me ....successfully :)
     
  20. jollyrodger

    jollyrodger Funster Life Member

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    That's the one I have works fine for me :)
     
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