Whats the smallest battery I can use for my bike?

Discussion in 'Softail Models' started by 05FXST, Dec 13, 2009.

  1. 05FXST

    05FXST Member

    12
    0
    0
    Im changing my 05 Standard into a bobber with a spring seat and got a new strutless fender. I have put the EMC with the battery and split the fuse harness. If I just had a smaller battery it would be great. Any suggestions?
     
  2. dangerdan

    dangerdan Junior Member

    922
    26
    0
  3. NEWHD74FAN

    NEWHD74FAN Experienced Member Retired Moderators

    8,176
    98
    16
    Having a 2005 bike, if you do not have EFI or Alarm System, your need for full 250 CCA rated battery may be less. If you add a switch to the headlight or cutout relay to shut it off during cranking that would help as well. Since you still have electronic ignition, the voltage threshold during starting is still around 9-10V so do consider the current draw during starting (Reserve CCA) is still the controlling factor determining the battery size (almost 3x the 1100W stock starter draw).
     
  4. 05FXST

    05FXST Member

    12
    0
    0
    Thanks!
    I was talking to a guy today about a compact battery that a guy had started making on his own in Alaska and now he has his own production has anyone heard of that?