Dead Battery after Accident
05-13-2010, 01:45 PM
#11
5th Gear Member
Join Date: Feb 2007
Location: Hawaii
Posts: 2,211
IMO, buying an Optima is overkill and a waste of good money.
you can grab a 850cca battery for about $100 that is overkill for your 4.6. I prefer interstate batteries myself.
unless you are running an extreme sound system, the Optima cost isn't justified
you can grab a 850cca battery for about $100 that is overkill for your 4.6. I prefer interstate batteries myself.
unless you are running an extreme sound system, the Optima cost isn't justified
05-13-2010, 01:54 PM
#12
2nd Gear Member
Join Date: Apr 2010
Location: RI
Posts: 312
It's possible that the physical shock to the battery at the time of the accident was enough to cause some of the seperator plates to fail which is a common cause for catastrophic battery failure (one reason that marine batteries are made with stiffer seperator plates; to handle the pounding from wave action). When the seperators fail, the cells will slump against one another and short out.
If the internal battery construction is examined by cutting one open the lead bonds between the different cells are exposed.
While the lead bonds are substantial, the connection points may fracture and provide the 0V failure.
It sounds like the impact caused the fracture in this case.
05-13-2010, 02:47 PM
#13
2nd Gear Member
Thread Starter
Join Date: Apr 2009
Location: TX
Posts: 269
Just curious this Failure due to the impact, is that something that would happen immediately after impact or does it slowly render the battery useless? As I stated earlier the car ran fine immediately after the wreck.
05-13-2010, 04:21 PM
#14
6th Gear Member
It's hard to say. The plates could have weakened from the accident and then fallen apart on the ride home. The battery can die catastrophicaly while the engine is running and you'd never know until you shut the car off and tried to restart since the alternator was supplying the power while the engine was running; not the battery.
05-13-2010, 05:02 PM
#15
S197 Section Modder-ator
Join Date: Sep 2007
Location: Orlando FL
Posts: 13,373
05-14-2010, 07:20 AM
#16
6th Gear Member
Originally Posted by Tylus 
IMO, buying an Optima is overkill and a waste of good money.
you can grab a 850cca battery for about $100 that is overkill for your 4.6. I prefer interstate batteries myself.
unless you are running an extreme sound system, the Optima cost isn't justified
Ditto
IMO, buying an Optima is overkill and a waste of good money.
you can grab a 850cca battery for about $100 that is overkill for your 4.6. I prefer interstate batteries myself.
unless you are running an extreme sound system, the Optima cost isn't justified
Ditto
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