Visit The Dirt Forum for More Information

Author Topic:   batteries
Dirt Maniac

Total posts: 143
posted June 28, 2004 08:34 PM  
What kind of batteries do you guys use? Are the optima batteries worth the extra money? I'm not currently running an alternator but if I do will a normal heavy duty street battery work? I appreciate any feedback. thanks.

Dirt Forum Champ
Total posts: 5390
posted June 28, 2004 08:42 PM  
I'm a strong supporter of 16v batteries. Mine's going on 4 years now. They're about the same price as a top of the line Optima 12v, but need a $225 charger (at least for the first time you're looking at laying out $400). I have an Autometer 16v battery tender now that I leave on during the week which probably is extending it's life. But, they don't require an alternator and that's 1 less belt to fly off and give you a DNF.

Dirt Maniac

Total posts: 147
posted June 29, 2004 12:56 PM  
I had my battery for around 4 years with no problem's without a alternator, I just put a slow charge the night before and its a Interstate Battery.


Dirt Maniac

Total posts: 143
posted June 29, 2004 10:04 PM  
Thanks for the input guys. I'm new to this and trying to learn what I can from your experience. I don't want to do anything stupid to knock me out of a race. I saw a guy get his foot burned last year because he ran a plastic line to his oil gauge instead of a copper tube. The line burst and sprayed right down on his foot!

[This message has been edited by crc1124 (edited June 29, 2004).]

Dirt Roller

Total posts: 25
posted July 01, 2004 08:49 PM  
I've got an optima 2 seasons, no problems. Been looking at those 16v, waiting for some positive feedback before I make the switch.

Dirt Forum Champ
Total posts: 517
posted July 01, 2004 09:16 PM  
I run a big Everstart 875 cranking amp marine battery with a one wire alternator. I like the idea of not having to charge the battery every week and also making sure my HEI has the voltage it needs during the race. Everyone has a different opinion on this, and this is just the way I do it. I think whatever horsepower I'm losing by running an alt is made up by running one if you get what I mean.

Smith Racing Team

Dirt Freak

Total posts: 289
posted July 01, 2004 09:21 PM  
an alternator rob's less then 1 horse power. so i'll keep mine!

Dirt Forum Champ
Total posts: 879
posted July 01, 2004 11:22 PM  
Go to . You'll be amazed at the price shipped to your door. Can't say enuff 'bout the way an Optima holds it's charge!

rico 08
Dirt Forum Champ
Total posts: 1139
posted July 02, 2004 08:00 AM  
One thing to remember is to always mount the battery with the longest part running front to back on the car(positive post front and negative back)this way the hard cornering won't cause the plates to get together and short it out.

Dirt Forum Champ
Total posts: 635
posted July 02, 2004 11:20 AM  
Even the bestest of the best 12v battery is only 12.8-12.9 volts. That's it.. doesn't matter if it's a Optima or a Walmart $20 special. An HEI functions best with 13.2-13.4 volts and higher. Not saying it won't work at 12.8 volts, but it's peak performance is with higher voltage than what a 12v battery alone can deliver. I've even run 3 weeks (about 75 laps total) without recharging and it still had a tick over 16v.

** steps off soapbox **

[This message has been edited by Raz_900 (edited July 02, 2004).]

Dirt Freak

Total posts: 370
posted July 02, 2004 04:02 PM  
Here is how i see it. You are going to run whatever you want and what you have run. But just think about this. Raz said that the best only puts out about 12.9 or close to that so. Even if you charge it at the track. You go out there and run the 10-15 lap feature. Your distributor isnt getting what it needs. To me that says "the power sucker" is really worth it. I havent ever thrown a belt on one yet(knock on wood) You guys might turn them higher so it could be different.


Back to the Archives