Car won't start.

[circeansleeper]

Oh SNAP!

[DOHC_tuner]

just the battery right....how did the meth kit work out for you?

[leoalero]

Originally Posted by kwhauck

sounds like a ground issue to me......

x2 or the battery not connected properly,but you said you checked it,last time it happened to me my starter motor was badly connected!

[[ion] C2]

LOL
the battery terminals were loose. Fixed a lot of my weird issues.

Originally Posted by DOHC_tuner

....how did the meth kit work out for you?

It works out. I should be posting an update on some things soon. (seats, Takata harnesses, etc.)

[ThePrettyPhysicist]

first the question about the concrete: years ago batteries used to have rubber cases. the rubber was porous and the battery would self discharge from sitting on the concrete. it doesn't happen now because battery cases are plastic - either ABS or PP

Originally Posted by CactusWill

Batteries don't last as long in the cold then they do in warm temperatures. You're presenting the argument as if everything is conducted in a laboratory, and that real world factors do not have an influence on potential outcomes.

the self-discharge curve for a lead-acid battery is slower at cooler temperatures. however, cooler temperatures have a negative impact on CCA ...

[clutch1]

Originally Posted by rowdygls

Does the speed shop have a cement floor? I've heard a cement floor will kill a battery if left on it for to long. Cardboard between batt and floor will prevent this.

Truth. We discussed it in auto-electrical class. The reason escapes me as well, but indeed if you leave it on that floor too long it'll die.

[lonnie]

Originally Posted by ThePrettyPhysicist

first the question about the concrete: years ago batteries used to have rubber cases. the rubber was porous and the battery would self discharge from sitting on the concrete. it doesn't happen now because battery cases are plastic - either ABS or PP



the self-discharge curve for a lead-acid battery is slower at cooler temperatures. however, cooler temperatures have a negative impact on CCA ...

Well I guess we can count on you for an answer.....3 months later...LOL

This thread is old but thanks for the added info....LOL!

[Cliff8928]

Originally Posted by clutch1

Truth. We discussed it in auto-electrical class. The reason escapes me as well, but indeed if you leave it on that floor too long it'll die.

Concrete is alkaline.

[[ion] C2]

Originally Posted by CarQuest

Q: If I set a battery on concrete, it will quickly lose its charge?

A: Although it is true that after a period of time batteries do self-discharge, placing them on concrete won't speed the process. What you place your battery on is not as important as the type of environment you expose it to. A battery that is stored at cooler temperatures (not below freezing), and protected from severe extremes, will last much longer than a battery stored at extreme temperatures.

(http://www.carquest.com/partsBatteryFAQMyths.html#2)

Originally Posted by Trojan Battery Company

Long ago, when battery cases were made out of natural rubber, this was true. Now, however, battery cases are made of polypropylene or other modern materials that allow a battery to be stored anywhere. A battery's rate of discharge is affected by its construction, its age, and the ambient temperature. The main issue with storing on concrete is that if the battery leaks, the concrete will be damaged.

(http://www.trojan-battery.com/Tech-Support/FAQ.aspx)

[Fenderxcore]

I've actually learned in my electrical class that vibration is actually what kills a battery...My teacher had a whole explanation on it that I wish I could copy to try an prove it to people...But yeah thats why some peoples batteries last longer than other peoples...Depends on where ya drive