Battery is sizzling and about to explode
#1469047
07/16/13 10:27 PM
07/16/13 10:27 PM
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Joined: Jun 2013
Posts: 1,521 Tacoma, Washington USA
Adam71Charger
OP
pro stock
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OP
pro stock
Joined: Jun 2013
Posts: 1,521
Tacoma, Washington USA
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bought a brand new battery for my 318. Works/starts great been using it for a month. recently, I noticed little specs of ruined paint in my engine bay, I thought it was brake fluid leaking from somewhere and splattering all around the engine bay.. turns out one of the vents/caps at the top of the battery is leaking, and the battery is all pushed out and looks like it's about to explode. I stopped at the parts store and they tested my battery. With the engine off, the battery was fulled charger. At engine idle, the battery was getting 14.24 volts and was 90 degrees, and they said the alternator was good. I noticed over the past few days that the needle in the alternator gauge in my dash goes way past the 'C' mark, like the battery is getting over charged. Does this sound like a battery problem or an alternator problem?
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Re: Battery is sizzling and about to explode
[Re: Adam71Charger]
#1469050
07/16/13 10:40 PM
07/16/13 10:40 PM
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Joined: Jan 2007
Posts: 685 pennsylvania
poboyengineering
mopar
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mopar
Joined: Jan 2007
Posts: 685
pennsylvania
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put a voltmeter on it..im betting the alternator is charging at 14.5+ volts.
It may be ugly, but it sure is slow.
Girls comb their hair in rear view mirrors and the boys try to look so hard....
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Re: Battery is sizzling and about to explode
[Re: Adam71Charger]
#1469052
07/16/13 11:01 PM
07/16/13 11:01 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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As said bad reg or no reg ground. Less likely would be a grounded "green" field wire or alt field is grounded on the green wire side (brush assy). ASAP! pull the connector off of the reg till you get it solved. Deepcycling the batt by letting it run down with no charging is FAR less damaging than driving it with it full fielded like it is right now. That'll cook the batt/damage wiring & terminals/stress bulbs & accessories that are on as they ain't designed for 15+ volts
live every 24 hour block of time like it's your last day on earth
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Re: Battery is sizzling and about to explode
[Re: IMGTX]
#1469059
07/17/13 03:16 AM
07/17/13 03:16 AM
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Joined: Oct 2007
Posts: 3,933 Oregon
hooziewhatsit
master
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master
Joined: Oct 2007
Posts: 3,933
Oregon
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You say they tested the voltage at the battery at idle and it was at 14.25v? If so, that voltage is fine... 15v+ would cause your problem. 14.5v is ideal charging voltage, so your problem may be the battery. Unless something else goofy is going on
If you ever find yourself in a fair fight, your tactics suck.
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Re: Battery is sizzling and about to explode
[Re: hooziewhatsit]
#1469060
07/17/13 06:25 AM
07/17/13 06:25 AM
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Joined: Oct 2003
Posts: 21,345 Marysville, O-H-I-O
70Cuda383
Too Many Posts
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Too Many Posts
Joined: Oct 2003
Posts: 21,345
Marysville, O-H-I-O
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these alternators are not very good. if you have 14.5 volts at idle...what kind of voltage is it putting out when you have say 2500 RPM?!
**Photobucket sucks**
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Re: Battery is sizzling and about to explode
[Re: 70Cuda383]
#1469061
07/17/13 08:12 AM
07/17/13 08:12 AM
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Joined: Apr 2007
Posts: 905 SD
zrxkawboy
super stock
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super stock
Joined: Apr 2007
Posts: 905
SD
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As others have said, test your voltage at higher RPM. It's possible a bad battery could cause your ammeter to read "charge".
It's Swifty! Swifty, you toad sucker!
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Re: Battery is sizzling and about to explode
[Re: Adam71Charger]
#1469066
07/18/13 12:37 AM
07/18/13 12:37 AM
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Joined: Sep 2003
Posts: 1,688 Marlboro, NY, USA
Rick_Ehrenberg
top fuel
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top fuel
Joined: Sep 2003
Posts: 1,688
Marlboro, NY, USA
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My best guess: battery has a shorted cell. In the old days (removable caps), this was easy to test, but not any more.
If I'm right, you are now effectively charging a 10-volt battery at 14.5 V (prox). Current goes sky-high, battery explodes. Not fun.
Rick
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