Extra battery ?

Discussion in 'Crazy-Awesome almost Dakar racers (950/990cc)' started by pilacs, Apr 3, 2013.

  1. pilacs

    pilacs Adventurer

    Joined:
    Nov 8, 2008
    Oddometer:
    75
    Location:
    Orlando,FL
    Make it short I have to sleep with a CPAP machine.
    For my next trip I want to be able to power my machine from a extra gel battery. I have a pigtale from the main battery for the quick disconnect charger. Can I plug in my second battrey while I'm riding to charge it up for the night or I need one of those special isolator switch for it?
    Thanks in advance.
    #1
  2. Warin

    Warin Retired

    Joined:
    Aug 30, 2012
    Oddometer:
    3,393
    Ideally .. a special isolator.

    Being practical and cheap - once the bike is running plug in the other battery and ride away. I assume that you will be running the bike for more than say 20 minutes when you do this and won't be running spotlights, hair dryer and fridge at the time ? :D Do remember to unplug it once you stop. :baldy
    #2
  3. FakeName

    FakeName Wile E Coyote SuperGenius

    Joined:
    Jan 1, 2007
    Oddometer:
    2,044
    Location:
    San Diego
    Safe to assume the CPAP battery is 12v?
    #3
  4. Unstable Rider

    Unstable Rider Moto Fartografist

    Joined:
    Jul 23, 2010
    Oddometer:
    3,372
    Location:
    Twin Cities, Minnesota USA
    One of these DEKA sealed glass mat batteries will run my 12 volt CPAP machine for two 8 hour nights and still start my KLR on the last morning.


    I would never likely stay more than one night somewhere, but I tested it for two while at home and had good results. The entire project pretty cheap. I do carry a tiny charger along in the event I would hit a camp site with electric. Basically a wall wart 12 volt adapter, about 800 milliamp with alligator clips. Low tech sometimes best.

    Just trying to help, I know what a boat anchor the dang CPAP stuff is.



    Deka batteries:

    http://www.etx15l.com/

    This stuff also helped get it done.

    Electrical leads to run an easy 12 volt cigarette lighter accessory socket for your bike:

    Nifty 25 foot extension:

    Generic plug n play socket:
    #4