Power packs

Valkev
Valkev Forum Participant Posts: 13
edited April 2020 in Motorhomes #1

Hi

Can anyone suggest what power pack I should get to start my motorhome, it has a 2 litre diesel engine. it's in storage a the moment and we are not able to visit, so by the time we are allowed I am expecting the battery to be flat.

Comments

  • Tinwheeler
    Tinwheeler Forum Participant Posts: 23,142 ✭✭✭
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    edited April 2020 #2

    This is ours.

    It starts our 2 litre diesel Peugeot no trouble at all and the pack recharges from the mains in minutes.

    This make is often only found in trade outlets and I’ve never seen them online.

  • DavidKlyne
    DavidKlyne Club Member Posts: 13,860 ✭✭✭
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    edited April 2020 #3

    TW

    Amazon and Ebay have them listed but not always in stock!

    Once charged how long does it stay charged in order to start an engine or do you regularly top it up?

    David

  • Tinwheeler
    Tinwheeler Forum Participant Posts: 23,142 ✭✭✭
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    edited April 2020 #4

    I see that model is now available online, David, although it didn’t used to be. Quite a bit dearer in some cases than the price we paid though!

    Other than the initial charge when first purchased, I've never topped up the charge in ours except after using it. It’s been left for 12 months and still started the engine. It has a test button which shows the state of charge so it's probably worth checking that from time to time.

  • ABM
    ABM Forum Participant Posts: 14,578
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    edited April 2020 #5

     Could not get one of those, sadly, 'cos I've just been informed my Amazon prime account has been closed unless ,, ,, ,, ,, ,, ,, ,, ,,,

     

     

    P.S. / Edit   If you go to visit / collect your Motorhome by car,  and can drive to the front of it, then take a couple of decent jump leads and start it that way.

  • EmilysDad
    EmilysDad Forum Participant Posts: 8,973
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    edited April 2020 #6

    Most of the cheaper power packs have yet another lead acid battery for you to look after so obviously if you let go completely flat for too long you'll kill it .... 

  • Tinwheeler
    Tinwheeler Forum Participant Posts: 23,142 ✭✭✭
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    edited April 2020 #7

    We take ours with us, Brian, (remember the Altnaharra quip?). It weighs about 7kg though so it may not do for those with very limited payloads.

    It has other uses - running a tyre inflator pump or air awning pump or water pump, charging devices via its 12v power outlet socket etc etc.

     

  • Tinwheeler
    Tinwheeler Forum Participant Posts: 23,142 ✭✭✭
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    edited April 2020 #8

    It has a smart charger built in, so can be left on mains when not in use, plus it has a 3 stage state of charge test circuit.

    This isn't a 'cheap' pack compared to a lot and is the type used by many in the motor trade.

  • ABM
    ABM Forum Participant Posts: 14,578
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    edited April 2020 #9

    #  Ah Yes, I remember It Well #  but I have to admit my 2 berth Ducato is only rated with the lowish weight of 3300 kg, so I'll stick with the jump leads thank you !!

  • cyberyacht
    cyberyacht Forum Participant Posts: 10,218
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    edited April 2020 #10

    There's always the simple expedient of parking on a hill.wink

  • Tinwheeler
    Tinwheeler Forum Participant Posts: 23,142 ✭✭✭
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    edited April 2020 #11

    Only if a hill is available and we tend to avoid them when pitching. 🙄

    Likewise, not much good for an auto car so not 'always' or 'simple'. 🤔

  • EmilysDad
    EmilysDad Forum Participant Posts: 8,973
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    edited April 2020 #12

    You'll be OK then TW ..... 😘

  • Tinwheeler
    Tinwheeler Forum Participant Posts: 23,142 ✭✭✭
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    edited April 2020 #13

    So will anyone else with a flat battery if they’re staying on the same site as us. 👍🏻

  • EmilysDad
    EmilysDad Forum Participant Posts: 8,973
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    edited April 2020 #14

    My trusty 30 yr old jump leads have got a few motorhomers & others going again over the years too 😀

  • no one
    no one Forum Participant Posts: 216
    edited April 2020 #15

    I have one of these power banks

    power bank

    not exactly a jump starter but it works, all my vehicles (7) are petrol (including MH which is a 2ltr) and it has successfully given enough juice to start any of these which have had a flat battery.  it is connected to the battery with supplied leads and left for 5 - 10 minutes then, with it still connected, start the vehicle.

    small light in weight and, with other functions such as torch, usb and phone charging etc., very useful.

    I believe there are more powerful versions if you want that extra bit of oomph!

  • nelliethehooker
    nelliethehooker Club Member Posts: 13,644 ✭✭✭
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    edited April 2020 #16

    I see that you can get them on line from Mole Valley Farmers for £100  with free delivery or Click and Collect.

  • Tinwheeler
    Tinwheeler Forum Participant Posts: 23,142 ✭✭✭
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    edited April 2020 #17

    That sounds a fair price, assuming it includes VAT. 👍🏻

  • nelliethehooker
    nelliethehooker Club Member Posts: 13,644 ✭✭✭
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    edited April 2020 #18

    It does. There are other sleds on eBay but the prices vary and are much higher.

  • Tinwheeler
    Tinwheeler Forum Participant Posts: 23,142 ✭✭✭
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    edited April 2020 #19

    As I said earlier, they now seem to be available online but usually from trade suppliers.

  • hitchglitch
    hitchglitch Forum Participant Posts: 3,007
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    edited April 2020 #20

    On my Autosleepers Peugeot it is not obvious where to connect jump leads (the battery is only accessible from inside the cab). I got my dealer to point out the connections in the engine compartment. Also, I have read that it is not a good idea to jump start motorhomes. Can it interfere with the habitation control systems?

  • EmilysDad
    EmilysDad Forum Participant Posts: 8,973
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    edited April 2020 #21

    ALL vehicles need care when jump starting  ... make the last connection as quick & positive as you can to reduce arcing as you connect

  • Tinwheeler
    Tinwheeler Forum Participant Posts: 23,142 ✭✭✭
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    edited April 2020 #22

    It’s not affected ours, HG. 

    I'd have thought it to be perfectly OK as long as the hab electronics are turned off. 

  • hitchglitch
    hitchglitch Forum Participant Posts: 3,007
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    edited April 2020 #23

    I think the risk is that the habitation battery may also be flat so the load on the jump start vehicle alternator could be massive. Motorhome alternators presumably are oversized to cope with the load of charging both batteries and the alternator on, say, a family car is of a much smaller output.

    Worth looking at aandncaravans website where they say that under certain circumstances the habitation battery will attempt to supplement the jump start battery resulting in some quite severe damage to electronic systems in the motorhome.

  • hitchglitch
    hitchglitch Forum Participant Posts: 3,007
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    edited April 2020 #24

    See aandncaravanservices.co.uk, “Jump Starting a Motorhome” which describes the risks, albeit in unusual circumstances. In fact they say you should never do it!

  • no one
    no one Forum Participant Posts: 216
    edited April 2020 #25

    Just be careful jump starting, nobody has mentioned the smart charge alternators that are fitted to all 'modern' vehicles, the electronics can be severely damaged if jump starting is carried out incorrectly.

    as previous posts check the manual/and or dealer for advice (smart alternators are extremely expensive)

  • Tinwheeler
    Tinwheeler Forum Participant Posts: 23,142 ✭✭✭
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    edited April 2020 #26

    HG, as far as I know the vehicle electrics are standard van electrics. When the vehicle battery charge drops to about 10v, the battery usually disconnects to protect itself.

    Similarly, the habitation control unit normally disconnects the hab batteries, and the vehicle battery from the hab electrics, when the level drops to about 10v. On Sargent units, this is one of the advanced settings and can be altered. Therefore, what you suggest is unlikely to happen.

    Full details can be found in your Peugeot and Sargent handbooks. The Sargent instructions (Dealers' Handbook) can also be downloaded from their website.

    If jump starting the vehicle was likely to be detrimental, the under bonnet connections would not be fitted. Note, too, that dealers habitually start the MHs on their forecourts with battery packs.

  • hitchglitch
    hitchglitch Forum Participant Posts: 3,007
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    edited April 2020 #27

    I was just passing on what I read but agree that a battery pack would be safer than a jump start from another car. Also, there are older motorhomes that may not have the same level of protection as newer models. When we owned a caravan I had a spare battery on my bench and would swap them over periodically when the van was in storage. I also find a spare battery useful if you have a high power air compressor which uses battery connection rather than a cigarette lighter socket, although of course you can connect to a vehicle battery terminals direct.

    So, it might be worth buying a spare car battery of a decent size rather than a battery pack and use this rather than a jump start kit. £80 or so?

  • Tinwheeler
    Tinwheeler Forum Participant Posts: 23,142 ✭✭✭
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    edited April 2020 #28

    ......except the battery pack is portable and travels with us.

    Like all things, it’s ultimately down to personal choice.

  • nelliethehooker
    nelliethehooker Club Member Posts: 13,644 ✭✭✭
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    edited April 2020 #29

    Looks like I should get one, as our car wouldn't start yesterday after only standing idle for a couple of days. The battery appeared to be completely flat. Have had it on charge all day and will do similar tomorrow morning and the see what's what. Following advice I disconnected the battery before try to charge it up. Fingers crossed for tomorrow.

  • EmilysDad
    EmilysDad Forum Participant Posts: 8,973
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    edited April 2020 #30

    Sounds like your battery is on its last legs if it won't start your car after just a couple of days ... or something was left on

  • Tinwheeler
    Tinwheeler Forum Participant Posts: 23,142 ✭✭✭
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    edited April 2020 #31

    Hope for the best, Nellie.🤞🤞🤞