Replacement Battery

Discussion in 'Maintenance' started by bradt, Apr 5, 2021.

  1. bradt

    bradt Senior Member

    Joined:
    Nov 6, 2013
    Messages:
    2,370
    Likes Received:
    996
    Longish run over the weekend but bike seems a bit slow when starting (was on trickle all last week ) I think maybe the battery is on the way out. I bought a new one about a year ago but not fitted it yet, question is do I need to charge the new one before fitting ?
     
    #1 bradt, Apr 5, 2021
    Last edited: Apr 5, 2021
  2. dern

    dern Well-Known Member

    Joined:
    Apr 11, 2017
    Messages:
    286
    Likes Received:
    250
    Only if it's flat.
     
    • Funny Funny x 1
    • Thanks Thanks x 1
  3. Kentblade

    Kentblade God Like

    Joined:
    Jul 19, 2012
    Messages:
    2,875
    Likes Received:
    2,135
    @bradt

    Personally I charge every new battery before connecting them and putting them under a load.

    It’s fair to say most new batteries are pre charged at manufacturer, but you’ve very little idea how long ago that was and as you say, you’ve had it already a year.

    Dern, sorry, but will have to agree to disagree on that one matey, just comes down to personal preference I guess
     
    #3 Kentblade, Apr 5, 2021
    Last edited: Apr 5, 2021
    • Agree Agree x 2
    • Like Like x 1
  4. Lozzy

    Lozzy God Like

    Joined:
    Feb 8, 2015
    Messages:
    8,781
    Likes Received:
    4,666
    Adam always charges new batteries when mines ready for one too
     
  5. dern

    dern Well-Known Member

    Joined:
    Apr 11, 2017
    Messages:
    286
    Likes Received:
    250
    It was a bit of a light hearted comment to be honest. I've found that they tend to start fine when I've got a new one but if it doesn't then I charge it.
     
    • Like Like x 1
    • Thanks Thanks x 1
  6. Kentblade

    Kentblade God Like

    Joined:
    Jul 19, 2012
    Messages:
    2,875
    Likes Received:
    2,135
    Nice one, I fell for that like a kipper :)
     
    • Like Like x 1
  7. dern

    dern Well-Known Member

    Joined:
    Apr 11, 2017
    Messages:
    286
    Likes Received:
    250
    It was a pretty shit dad joke to be fair :)
     
    • Funny Funny x 1
  8. bonjo

    bonjo Active Member

    Joined:
    Aug 15, 2013
    Messages:
    1,032
    Likes Received:
    167
    definitely!
    IN fact if it is AGM and activated, then once every month or two even when sitting on the shelf.
    LPF's normall come 60% precharged but need to be changed before first use
     
    • Thanks Thanks x 1
  9. Jez

    Jez Active Member

    Joined:
    Jan 20, 2017
    Messages:
    766
    Likes Received:
    233
    Lead acid like to be stored at full charge and last better at full charge. when you discharge a lead acid it takes calcium out of the electrolyte and coats the plates, when fresh this is soft so when recharged the calcium goes back into the electrolyte, If you leave your battery for a long time the calcium hardens on the plates and stops them working. They can be brought back to life most times with a power supply set to max 14v 100ma for about 4 days this slowly removes the calcium without cooking the batt. , Life4po or Lion or anything lithium that is not lead acid likes to be kept at a low charge if not being used, this will give you the longest life as full charge slowly causes internal destruction.
    I have had a lot of dealings with battery's and extending their life, this was not for the bike but is the same
     
    • Like Like x 1
    • Thanks Thanks x 1
    • Useful Useful x 1

Share This Page