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Old 02-24-2010, 04:02 AM   #1
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Default Photocell Trickle Charger

Would anybody know any reasons I shouldnt hook up a 12 Vdc photocell directly 12 Vdc battery and use it as a trickle charger.

Have a boat do not use all the time but want to make sure the battery is good to go any time i want.
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Old 02-24-2010, 04:11 AM   #2
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Use a battery maintainer.
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Old 02-24-2010, 04:49 AM   #3
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Bob
It is a good idea.
But let me expand on position.

I am on a oil rig in the middle east.
A battery maintainer will be hard to explain to the bosses.
But I do have a solar cell on board.
And since in Persian Gulf sun light is not a problem
Thanks for the idea tho.
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Old 02-24-2010, 05:19 AM   #4
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Solar cell or photocell?
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Old 02-24-2010, 05:32 AM   #5
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Good catch

Mean solar panel.
Doing to much at once today sorry.
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Old 02-24-2010, 05:40 AM   #6
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A solar panel will charge the battery, but it can overcharge it as well. Best to use a battery maintainer.
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Old 02-24-2010, 05:43 AM   #7
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Yhea

Knew there was something suppose to remember about using solar panels but just would come to me.

Thanks for the help.
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Old 02-24-2010, 06:31 AM   #8
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I saw that they are selling a solar charger at walmart now. I didn't really check it out but I think it's to be used as a maintainer.
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Old 02-24-2010, 06:51 AM   #9
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You stand a pretty good chance of cooking your battery without a way to turn off the PV charging circuit. If you're in the middle of nowhere, you really need to keep a good eye on the battery. You'll get it all sulfated up, otherwise.
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Old 02-24-2010, 07:14 AM   #10
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How do you overcharge a battery?

Where do all the extra electrons come from?
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Old 02-24-2010, 07:19 AM   #11
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Quote:
Originally Posted by Dnkldorf View Post
How do you overcharge a battery?

Where do all the extra electrons come from?
If you continue to charge it beyond it's basic "capacity", you can boil it dry.
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Old 02-24-2010, 07:34 AM   #12
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Quote:
Originally Posted by MDShunk View Post
If you continue to charge it beyond it's basic "capacity", you can boil it dry.



In general, a battery is a couple plates.

One side is negative, full of negatively charged electrons, one is positive full of postively charged electrons.

If you moved all the negative ones to one side, and all the positive to the other.....which I beleive would be considered fully charged........how do you overcharge a battery?


You would have to cram more electrons than possible in one of the plates?


No?
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