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Can a battery be on a trickle charger too long?

Discussion in 'Technical Q&A' started by jgoodman, Mar 1, 2014.

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  1. cheesey

    cheesey Formula 3

    Jun 23, 2011
    1,921
    #26 cheesey, Mar 3, 2014
    try again, you are displaying misinformation and in conflict with the battery industry... can't get minutes ( time ) without knowing the Ah capacity :=), batteries are selected / graded by the Ah rating... how long the Ah last is up to the user and what his needs are for power... Ah is the total capacity of a battery, in the same way a fuel tank is on a car, how long it lasts is up to the driver and the ways he decides to drive
     
  2. andyww

    andyww F1 Rookie

    Feb 7, 2011
    2,775
    London
    #27 andyww, Mar 3, 2014
    Last edited: Mar 3, 2014
    Where was the misinformation? He stated the definition of Reserve capacity absolutely correctly. RC is stated in minutes because the other factors are implied as part of the definition, ie 25 amps of current and a min voltage limit of 10.5 V.

    RC is a better definition than capacity in Amp/hours because it specifies the discharge rate.
     
  3. BULL RUN

    BULL RUN Formula 3

    Dec 18, 2004
    1,684
    #28 BULL RUN, Mar 3, 2014
    For example. If a battery is rated at 100 minutes at a 25 amp discharge rate before it reaches 10.5, and it only delivers 90 minutes, then it is said to have 90% of it's capacity. That is reserve capacity. You don't really have to know the AH. This is all important to deep cycle batteries though, and is useless to starting batteries.

    The test them place the rated CCA load on the battery for 15 seconds. If it holds above 9.6 volts then it is said to be good.
     
  4. Mozella

    Mozella Formula Junior

    Mar 24, 2013
    905
    Piemonte, Italia
    #29 Mozella, Mar 3, 2014
    I'll not respond any further.

    I'm reminded of some advice I got years ago, which is: Don't wrestle with pigs. Win or lose, you'll wind up covered in mud and pig ****. And what's more, the pigs like it.
     
  5. jgoodman

    jgoodman F1 Rookie
    Silver Subscribed

    Aug 29, 2009
    3,257
    Central PA
    Full Name:
    Jay Goodman
    #30 jgoodman, Mar 4, 2014
    So……my battery is fully charged and I have taken it off the trickle charger for no other reason than the hope that that will get spring here sooner.
     
  6. Ricambi America

    Ricambi America F1 World Champ
    Sponsor Owner

    Dec 7, 2003
    16,393
    Winston Salem, NC
    #31 Ricambi America, Mar 4, 2014
    ^ Power of positive thinking!!
     
  7. Alcav5

    Alcav5 F1 Rookie
    Rossa Subscribed

    Jul 28, 2012
    4,069
    Scarsdale, NY
    Full Name:
    Al
    #32 Alcav5, Mar 4, 2014
    Ha.
    Every Sunday for the past year when I am done with my weekend driver, a 2010 California, I have put it on a trickle charger. Every Friday night or Saturday morning for the past year I have enjoyed turning on my car without a hitch. Piece of mind I suppose.

    Just got my car back from it's annual service and I was told my battery reading came in low so they recommended a change. Oh? Was told regardless that I trickle charged the battery religiously , it's 4 years old and is just due to be changed...

    Whatever... I still love the car.
     
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