using a 12V 66amph battery instead of a 12V 15amph battery

Discussion in 'General Electronics Chat' started by RVnnan, May 1, 2014.

  1. RVnnan

    Thread Starter New Member

    May 1, 2014
    2
    0
    hello Every body! :)
    i have an appliance at home which uses a 12V 1.5amp Max. 15amh battery.
    i just wanted to ask whether i can use a 12V 66amh car battery instead. please help!!...
    it is a little bit ergent.
    i wanted to use that 12V 66amh car battery in my amplifier when we go outdoors camping. it seems that it would last much more longer, yes?? :)
    pleaase help
     
  2. inwo

    Well-Known Member

    Nov 7, 2013
    2,433
    315
    Yes, you can.................................................................................
     
    RVnnan likes this.
  3. RVnnan

    Thread Starter New Member

    May 1, 2014
    2
    0
    thank you very much, dude, i don't want it to woom, i just want its battery to last a little bit more! :) its original battery last no more than 5 hours, i think if i use a car battery it would last much more?? :)
     
  4. samuel.whiskers

    Member

    Mar 17, 2014
    95
    2
    4 times as long, give or take.... do note that car batteries are designed for high-current engine starting, rather than low current high drain amplifier running.
     
  5. crutschow

    Expert

    Mar 14, 2008
    13,000
    3,229
    Yes. If you are buying a new battery for this purpose, get a deep cycle type as they will last longer.
     
  6. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    Keep in mind that an automotive battery is not designed for deep-cycle use, which is what you want to do with it. They are designed to output hundreds of Amperes for short periods of time, and then to be immediately recharged by the vehicle's alternator.

    Deep-cycle batteries is what you want, as crutschow mentions.
     
  7. Johann

    Senior Member

    Nov 27, 2006
    190
    30
    Yes, and get yourself a good charger too! You don't want to spend money on a battery without the facility to charge it soon after use.
     
  8. ErnieHorning

    Member

    Apr 17, 2014
    67
    17

    Also keep in mind that a 66amh will weigh more than a 15amh battery. A deep cycle will also weigh than a standard one because the plates are thicker to help prevent warpage during repeated charge and discharge.
     
  9. #12

    Expert

    Nov 30, 2010
    16,261
    6,770
    Of course, if you have a junk yard behind your house, you can get away with a used car battery. It just won't be the best possible thing for this job.
     
Loading...