running without a battery
10-30-2008, 02:08 PM
#1
3.0 BAR
Thread Starter
Join Date: Oct 2005
Location: St. Augustine FL
Posts: 3,936
running without a battery
I am thinking about running with a really small battery for weight reduction, but I'm worried that it
Oght make less power or won't run right with the reduced battery power. How much does the battery effect how the car runs. I plan to use a jump box to start the car and it will be a dediated track car so headlights and things like that aren't an issue
Oght make less power or won't run right with the reduced battery power. How much does the battery effect how the car runs. I plan to use a jump box to start the car and it will be a dediated track car so headlights and things like that aren't an issue
10-30-2008, 02:27 PM
#2
1.5 BAR
Join Date: Oct 2006
Posts: 964
Re: running without a battery
i'm not sure about the exact voltage levels while the car is running without a battery hooked up, but in theory, the alternator should put out 13+ volts. if you mean track, like drag strip id say you're fine. road course, you better have a way to start the car incase you stall it when you spin out, etc.
i'll tell you what, i'm interested in this info too, so when I get home, i'll do some testing with a volt meter and the battery terminals unhooked.
i'll tell you what, i'm interested in this info too, so when I get home, i'll do some testing with a volt meter and the battery terminals unhooked.
10-30-2008, 04:09 PM
#7
3.0 BAR
Thread Starter
Join Date: Oct 2005
Location: St. Augustine FL
Posts: 3,936
Re: running without a battery
I get used airplane batteries for free. The ones I get are sealed too so they can be mounted anywhere. The free ones that I get that I plan to use in the race car are secondary batteries. All of the batteries i get are replaced every 2 years weather they need it or not so they usually last 2-3 years after I get them.
10-30-2008, 06:17 PM
#8
3.0 BAR
Join Date: Mar 2008
Location: texas
Posts: 2,598
Re: running without a battery
ill send you money for one of those batteries. you will be fine running with no battery i have done it before in my crx. the alternator should be around 14.5 volts so once the car is running it does not need the battery. and if your worried about voltage drop when hitting the gas maybe get a capasitor to help out. but if your alternator is working good then no need for a battery
10-30-2008, 06:19 PM
#9
1.0 BAR
Join Date: Mar 2007
Posts: 211
Re: running without a battery
Originally Posted by PhilStubbs
I get used airplane batteries for free. The ones I get are sealed too so they can be mounted anywhere. The free ones that I get that I plan to use in the race car are secondary batteries. All of the batteries i get are replaced every 2 years weather they need it or not so they usually last 2-3 years after I get them.
10-30-2008, 06:21 PM
#10
3.0 BAR
Join Date: Mar 2006
Posts: 5,631
Re: running without a battery
Im using a odyssey PC680... It doesnt weigh ----, is really small and I have a small system in trhe car (JL 10 and Fosgate 200 watt amp). It has yet to let me down... Even in the EX Accord with power everything.
Do it.
Do it.
