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Go Back   SR20 Forum > Main Forums > SR20DE Technical Corner



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Old 11-23-2004, 07:23 AM   #1 (permalink)
EECS Nerd.

 
Join Date: Sep 2004
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A worthy battery?

My friend just gave me a new-in-box Optima Yellow top, however its the smaller-sized one (about 2/3 the size of a regular red-top optima).

Anyhow, will this be enough to run my car? Running pretty-much stock with a crappy radio system.

The battery's rated at:
CA 625
CCA 500
AH 41
RH 70 (i duno what AH, RH stand for..)

Currently, my car's running a 650CA rated battery, so I'm assuming its safe.. but just wanted to see what kind of power everyone else's battery is putting out.

TIA - phil
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Old 11-23-2004, 08:45 AM   #2 (permalink)
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Alot of us are using the Hawker 10lbs battery. It works more than fine, with ALOT less power than the one your going to use.

http://userwww.sfsu.edu/~douglee/battery.htm
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Old 11-24-2004, 12:33 AM   #3 (permalink)
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That battery will be more then enough to run your car. Up untill recently I was running my car with one of the cheaper wal mart batterys and it powered my 300 watt amp fine.
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Old 11-24-2004, 04:08 AM   #4 (permalink)
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Something people forget is that the battery really only needs to have enough amperage to start the car. Once it's started, the alternator does most of the work. I have a 10lb Hawker in my trunk, I think it puts out maybe 200 amps. Car takes a bit longer to start and when it gets below freezing we'll see if it can still do it, but other than that it's fine. AH stands for Amp Hour, maybe RH is Recharge Hour or Recovery Hour?
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Last edited by Toolapcfan : 11-24-2004 at 04:13 AM.
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Old 11-24-2004, 09:11 AM   #5 (permalink)
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My car hasn't had any problems in the cold, but you're alot farther north than me.
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Old 11-24-2004, 10:29 AM   #6 (permalink)
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Quote:
Originally Posted by AaroNX
My car hasn't had any problems in the cold, but you're alot farther north than me.
My '93 se-r w/ hawker 10 lb. started fine yesterday morning. It hadn't been started for 4 days, and the temp was low 30s F.
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Old 11-24-2004, 01:42 PM   #7 (permalink)
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Well I had mine in the car last winter(it usually gets down in the teens), and I never had any problems with it, but I know it get's alot colder up north.
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