02 chevrolet corvette
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Intermediate
Joined: Jul 2017
Posts: 25
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From: Baytown texas
02 chevrolet corvette
It seems Like I have to replace my battery once a year Yellow Top Optima's . I have replaced my Alternator it's a 110 AMP is there some other things I need to check . Its not daily driver. I start it up at least twice a week and let it run to normal temperature .
Melting Slicks
Joined: Sep 2011
Posts: 2,258
Likes: 544
From: Appleton WI
Letting the car idle to operating temperature does not garauntee the battery is charged. You have to drive it and get the RPMs up. As suggested, a good quality battery maintainer (smart charger) is in order. A good battery maintainer will only charge the battery when needed and keep it at optimal charge. CTEK and Battery Tender are a couple of examples.
Also, from what I've heard, the yellow top and red top battery quality isn't what it used to be.
Also, from what I've heard, the yellow top and red top battery quality isn't what it used to be.
Last edited by 3sACROWD; Jul 25, 2017 at 06:40 PM.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Letting the car idle to operating temperature does garauntee the battery is charged. You have to drive it and get the RPMs up. As suggested, a good quality battery maintainer (smart charger) is in order. A good battery maintainer will only charge the battery when needed and keep it at optimal charge. CTEK and Battery Tender are a couple of examples.
Also, from what I've heard, the yellow top and red top battery quality isn't what it used to be.
Also, from what I've heard, the yellow top and red top battery quality isn't what it used to be.
Idling a car to maintain the battery charge is NOT going to keep it charged.Your C5 has a "NORMAL" parasitic battery draw of 20-25 mA when it just sitting OFF.
A good brand new fully charged battery will allow you to store the car for 30-40 days and still crank / start the engine. HOWEVER,,, If the cars electronics isn't working correctly, you could possibly have a parasitic battery draw that is ABNORMAL and that will cause the battery to die in short order.
ONLY way to figure that out is to do a parasitic battery current draw test.
Put a AMP Meter in series with the neg battery cable/battery terminal and see what it is after the BCM goes into sleep mode..
Last edited by Bill Curlee; Jul 25, 2017 at 03:20 PM.
