Trickle charge

Discussion in 'General Harley Davidson Topic' started by Rapedape, Jan 28, 2009.

  1. Rapedape

    Rapedape Banned

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    I have a trickle charger but I hav'nt put it on my battery since I put the bike away. My ? is how long should a person put a battery on charge before pulling it off.( with a trickle charger) Thanx !!!:)
     
    Last edited: Jan 28, 2009
  2. TQuentin1

    TQuentin1 Well-Known Member Staff Member Moderator

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    I think that depends on your trickle charger, and if it is even designed to fully charge a substantially discharged battery. The little unit I have does have the necessary circuitry to do so, but it will take a long time. For my batteries that get very low, I also have a 2/6 amp inexpensive charger that I can use to do the yeoman's share of getting it up to full charge, and then I use the trickle charger (every day) to maintain the battery fully charged.

    Look up your charger online and see if it is designed for use on a substantially discharged battery.

    TQ
     
  3. glider

    glider Veteran Member

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  4. TQuentin1

    TQuentin1 Well-Known Member Staff Member Moderator

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    In the big bike, I have an ODYSSEY Drycell PC 925LMJ which has the following specs Odyssey PC925 LMJ
    • 925 cranking amps for 5 seconds
    • 870 cranking amps for 10 seconds
    • 765 cranking amps for 20 seconds
    • Short circuit current over 2400A
    • 28 amp hours
    • 50 minute reserve capacity with 25amp load
    • Female brass terminal w/M6 SS bolt
    • Measurements (for Harley mounts):
    • Length 6 5/8"
    • Width 4 15/16"
    • Height 7"
    • Weighs 25.5 lbs
    I got the Battery Tender Jr. for Christmas. Its charging rate is nominally 750mA (Batterytender.com - Home of All Your Charging Needs Battery Tender Jr.).

    So on the assumption that my Odyssey is COMPLETELY discharged (not gonna happen!) and using the calculator Glider gave us above, it would take about 38.4 hours to completely charge the battery with the Junior!! As I recall, the battery was supposed to be charged "over night" on a "slow charge" before its first use.

    As I said in my post above, I use my 2A/6A charger to get the battery up to fully charged, and then just keep it on the tender. Since I ride almost every day (weather permitting), I just plug in the pig-tail when I park in the garage, and the battery is fully charged next time I go to ride.

    TQ
     
    Last edited: Jan 28, 2009
  5. steve299

    steve299 Active Member

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    I went and got the Battery tender and so far it works great
     
  6. Rapedape

    Rapedape Banned

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    Thanks guy's !!! I guess I'll buy a charger and go from there.....

    Cheers !!:D