1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

Car Cigarette Lighter

Discussion in 'Car Repairs / Maintenance' started by aidee, 6 Sep 2012.

  1. aidee

    aidee

    Joined:
    6 Sep 2012
    Messages:
    4
    Thanks Received:
    0
    Location:
    Roxburghshire
    Country:
    United Kingdom
    Hi everyone,
    I want to fit a 12v cigarette lighter socket to my Mobility Scooter, so I can use a 12v tyre inflator.
    The battery fitted is 12v 34a. I intend cannecting 2 wires (20 AWG) to the battery at one end, whilst the other end is connected to a Female Quick Disconnect Terminal. This circuit will be a permanent fixture on the Scooter.
    The cigarette lighter socket will have a fuse fitted between the socket and the end of the wire, which will have the Male Quick Disconnect Teminal. This circuit will be plugged in when using the inflator, then removed.
    Can anyone tell me if this will work and give me any ideas on which wires, and terminals to use, and which fuse.
    Thanks,
    Aidee :?:
     
  2. Sponsored Links
  3. Peter.N.

    Peter.N.

    Joined:
    26 Sep 2006
    Messages:
    1,758
    Thanks Received:
    266
    Location:
    Dorset
    Country:
    United Kingdom
    There is no reason why it shouldn't work, the only problem I can see is that the tyre inflater takes a few amps and could limit your range but if you don't go to far from home shouldn't be a problem.

    Peter
     
    • Thanks Thanks x 1
  4. aidee

    aidee

    Joined:
    6 Sep 2012
    Messages:
    4
    Thanks Received:
    0
    Location:
    Roxburghshire
    Country:
    United Kingdom
    Hi again everybody,
    I have just received a reply from the inflator manufacturer. The unit draws 10 Amps.
    AD
     
  5. Belle427

    Belle427

    Joined:
    16 Jan 2006
    Messages:
    2,942
    Thanks Received:
    280
    Location:
    Newport, S Wales.
    Country:
    United Kingdom
    what is the amp hour rating of the battery? (ah)
     
  6. aidee

    aidee

    Joined:
    6 Sep 2012
    Messages:
    4
    Thanks Received:
    0
    Location:
    Roxburghshire
    Country:
    United Kingdom
    Hi ch427,
    The scooter is fitted with 2x12v, 34aH batteries.
    AD
     
  7. dhutch

    dhutch

    Joined:
    12 Oct 2011
    Messages:
    1,653
    Thanks Received:
    101
    Location:
    Wirral
    Country:
    United Kingdom
    Should be fine then.

    I would take two wires of the battery up to the socket, which you can mount where you like. I would also include a suitable fuse (say 15amps) in the +ve wire unless the wire runs are very short incase of a fault.


    Daniel
     
    • Thanks Thanks x 1
  8. Belle427

    Belle427

    Joined:
    16 Jan 2006
    Messages:
    2,942
    Thanks Received:
    280
    Location:
    Newport, S Wales.
    Country:
    United Kingdom
    make sure the fuse is as close to the battery as possible.
     
  9. Burnerman

    Burnerman

    Joined:
    7 Feb 2008
    Messages:
    21,514
    Thanks Received:
    4,155
    Location:
    Northumberland
    Country:
    United Kingdom
    Is there any mileage (no pun) in connecting your tyre inflator to the scooter charging port, using a suitable plug?
    John :)
     
  10. Sponsored Links
  11. aidee

    aidee

    Joined:
    6 Sep 2012
    Messages:
    4
    Thanks Received:
    0
    Location:
    Roxburghshire
    Country:
    United Kingdom
    Burnerman,
    My neighbour said the same thing, but I don't know how.
    The Charger is a 12v 3a. If you can tell me how, I'll do it.
    AD
     
  12. Burnerman

    Burnerman

    Joined:
    7 Feb 2008
    Messages:
    21,514
    Thanks Received:
    4,155
    Location:
    Northumberland
    Country:
    United Kingdom
    Well aidee, there's a good chance that I've no idea what I'm talking about, but nothing new there then.... :p
    My thinking......your external charger presumably plugs into the mains, and its output is 12v DC which charges up the scooter batteries fine.
    It will have its own special plug for this, the socket of which will be on the scooter somewhere.
    The amp output of the charger doesn't matter...the fewer the amps, the longer the charge time.
    Anyway, the connections from that socket have to go straight to the battery - I can't see any need for fusing here or circuitry via the ignition switch etc.
    So, assuming that the cables from socket to battery are of sufficient thickness (sure to be, really) the theory is you buy another plug (same as the one from the charger) and connect it to your tyre inflator.
    Plug it in, and you're ready to go but the polarity is important.
    Your homework - can you find another identical plug (Maplins, RS, even the manufacturer).....are the socket to battery cables capable of handling the current used by the inflator.....are there any fuses in that line?
    Regards
    John :)
     
    • Thanks Thanks x 1
  13. AlanE

    AlanE

    Joined:
    26 Feb 2004
    Messages:
    2,986
    Thanks Received:
    557
    Location:
    Essex
    Country:
    United Kingdom
    John have absolutely no idea if there is, but there might be a series diode in the charging circuit of the bike which would effectively isolate this socket when not used for charging battery.
     
  14. libby lou lou

    libby lou lou

    Joined:
    16 Oct 2006
    Messages:
    3,756
    Thanks Received:
    43
    Location:
    Lancashire
    Country:
    United Kingdom
    Why say +ve ? is ve the back end of the word live ?
     
  15. Burnerman

    Burnerman

    Joined:
    7 Feb 2008
    Messages:
    21,514
    Thanks Received:
    4,155
    Location:
    Northumberland
    Country:
    United Kingdom
    Indeed Alan you are absolutely correct if that was the case - although I can't see the need for a blocking diode in this situation.
    We'll see when aidee does his homework!
    John :)
     
  16. dhutch

    dhutch

    Joined:
    12 Oct 2011
    Messages:
    1,653
    Thanks Received:
    101
    Location:
    Wirral
    Country:
    United Kingdom
    As said, it may be that the charge socket is just a two pole socket direct onto the batterys, with all the cleverness in the charger. However there could be diodes (if only to prevent reversed connection) or there could (i doubt) be a load of charge cicuitry on the buggy itself.

    It also depends what the plug is, if its some obscure it might be easier fitting a fag lighter than finding a suitable plug to fit the existing socket!

    Have you thought about just carrying a tin og tyre weld?


    Daniel
     
  17. Crickleymal

    Crickleymal

    Joined:
    2 Nov 2010
    Messages:
    256
    Thanks Received:
    15
    Location:
    Gloucestershire
    Country:
    United Kingdom
    Just one thing to consider,Aidee said it had 2 X 12V 34Ah batteries. It's likely these are connected in series giving 24V rather than in parallel. So the charging socket in the wall will be putting out about 27 or 28V rather than about 13 or 14V.
     
Sponsored Links
Loading...

Share This Page