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Unread 06-11-2015, 10:35
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the_42nd_parado the_42nd_parado is offline
Team Captain, who knows very little
AKA: Daniel
FRC #3240 (Team Orion)
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Join Date: Nov 2014
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Posts: 11
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Re: Battery: Where did we go wrong?

Quote:
Originally Posted by Al Skierkiewicz View Post
Daniel,
This is common failure for these batteries. In almost all cases, an inspection of the bottom of the battery will show some damage. It is likely that the battery was dropped at some point.
I just got a look at the battery, sorry for the lack of photos my phones camera is from ~7 years a go, flip phone. Regardless I could see no major damage to the bottom, no cracks or obvious dents. However the bottom did seem scraped up, but that may just be due to normal wear and tear.

Quote:
Originally Posted by techhelpbb View Post
I often see people using chargers that make lots of claims about overcharging this and that but I have lots of experience with batteries (built electric vehicles and computer room battery backups). I rarely trust a battery charger I either haven't got extensive historical data or at least a complete schematic and source code for.
Well regardless from this point forward we will only charge batteries under supervision. Hopefully this will reduce our problem.

Eidt:
Just found the battery charger specs after posting this. Here is the charger we are using:
http://www.andymark.com/Battery-Char...-p/am-2026.htm

Last edited by the_42nd_parado : 06-11-2015 at 10:37. Reason: Found more information