Wow, Car battery gernaded

Post in 'DIY and General non-hearth advice' started by bsa0021, Oct 9, 2011.

  1. bsa0021

    bsa0021
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    Feeling the Heat

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    I have a car that I store in the winter and I didn't take it out this summer so since the weather was nice today I thought I would start it and run it around the block. I put in a good battery that had been on a trickle charger and when I turned the key BAM the battery expolded. Fortunatly, the hood was closed. The battery was completely dry so I figue my 1 amp charger must have cooked the battery and adding a load to it caused the explosion. Am I right on this? I guess I better invest in a couple of battery tenders that are safer to use.
     
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  2. snowleopard

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    Had to read that twice--first time I read, "I have a car that I stole in the winter . . . " :gulp:

    How long did you have it cooking? Had you checked the liquid levels in it before you put it on the charger? Why do you keep it on a charger--how about just disconnecting the battery and storing it someplace warm?
     
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  3. Hass

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    I just keep spare batteries out in the cold...
    I know it's not good for them, but sometimes you don't have space.
    I put them on a trickle for a day or two every other month or so.
    Haven't had any problems yet.
     
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  4. bsa0021

    bsa0021
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    I had two trickle chargers I used for 20 years that I left two batteries hooked up to all winter in an unheated garage and I never had a battery run dry. Those chargers died this spring and I've been using a 1amp trickle motorcycle charger and apparently it was overcharging both batteries. I should have been more careful when I used a different charger. It's too bad I ruined the better of the two batteries.
     
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  5. charly

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    Batteries do need to be charge on occasion. They get what's known as stand loss, and sulfate. You do need a charger that senses when the battery is fully charged, so it shuts down and doesn't boil the battery dry. Slow charging is the best. Some better chargers I believe pulse charge the battery as it gets nearer to a full charge. Heat is a batteries' enemy.
     
  6. woodgeek

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    1 amp is way too much for a trickle. I would think 0.1 would be plenty.
     
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  7. heat seeker

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    Yes, you are right.

    The battery had hydrogen gas in it, a byproduct of charging, along with some oxygen from the air. Being dry, when you put a load on it, there was a spark inside the battery. Result = explosion.

    Glad you had the hood closed! Wash the car with baking soda/water mix to neutralize the acid.

    Battery minder chargers regulate the current, and won't overcharge a battery.
     
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  8. BrotherBart

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    Beat me to it. Right on the money seeker.
     
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  9. heat seeker

    heat seeker
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    Woo Hoo! That's one in a row! :lol:
     
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  10. MasterMech

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  11. Renaissance

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    What you want is a float charger, which is a trickle charger with brains. A trickle charger is just a glorified DC adapter.
     

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