Battery Tender Question

Discussion in 'General Tech Talk' started by Old N' Grumpy, Nov 5, 2019.

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  1. Old N' Grumpy

    Old N' Grumpy Living Legend

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    Will a battery tender charge up a completely dead battery or do I need to do something else to revive it. Battery is under a year old.
     
  2. Mighty Mouse

    Mighty Mouse Supercharged

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    One way to find out. Hook it up and let it sit for 24 hours then give it a shot. If it's only a year old it should start up after the charge. I won't ask how the battery was drained within a year. But, how was the battery drained within a year?
     
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  3. Old N' Grumpy

    Old N' Grumpy Living Legend

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    Left it overnite, hit the switch and nothing! Guages didn't even light. Gonna leave it for another day or two and see.
     
  4. Jason Jurgens

    Jason Jurgens Ons gaan nou braai...

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    Modern batteries don’t like being run down low. Does your charger have a recovery mode?
     
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  5. Old N' Grumpy

    Old N' Grumpy Living Legend

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    Nope. If I knew of a deep cycle battery that would fit I would buy as they have no problem being repeatedly run down.
     
  6. Kevin frazier

    Kevin frazier Widow maker Nashvegas

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    Grumpy my tender will not come on to charge unless the battery being charged has a certain voltage
     
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  7. Gregger

    Gregger Nitrous

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    This is a battery polarity protector. Try putting some booster cables on the battery for a few minutes from your car then remove and install the battery tender. As Kevin stated, some of the more sophisticated tenders need to see several volts to ensure the battery is being charged the right way.
     
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  8. Old N' Grumpy

    Old N' Grumpy Living Legend

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    I will try that. Thanks!
     
  9. 1olbull

    1olbull Riding Motor Since 1950

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    Nope. Me reckons you need a deep cycle charger.
    I use this one:
     
  10. Ralsmith

    Ralsmith .040 Over

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    Try connecting another battery in parallel across the terminals and then charge both of them together, this fools the modern day chargers into thinking it is only one good battery
     
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