battery draw test procedure question
Thread Starter
Pro
Joined: Apr 2006
Posts: 552
Likes: 0
From: Alton Illinois
battery draw test procedure question
i think my red top has shot craps because it can not hold a charge for more than two days, but i am going to charge it back up and read the voltage across it and put an ammeter in series to test for an abnormal current draw. now my question is that i have i know i have to wait until sleep mode to test the current draw and make sure the hood light is pulled, how do i open the p side door and pull the inside fuses to check circuits if i notice a greater than 25ma draw ? does this not take it out of sleep mode or do i have to disconnect the interior light too? also, i am looking at a napa battery to replace the red top at about half the price. anyone got recommendations as to a cost effective battery to put in if that is what it turns out to be? consumer reports recommends a die hard which is another option. you comments and recommendations will be appreciated.
thanks
thanks
Pro
Joined: Aug 2006
Posts: 565
Likes: 2
From: Chattanooga TN
I had a red top that was bad as well. After putting it on the charger for a day, it wouldn't hold overnight. If you think the battery is bad, go to a local auto parts store and they'll probably test everything in the car for nothing.
I took the car to Advance Auto, and they had a device that tested the charging system and the battery. The battery was bad, so they replaced it.
I took the car to Advance Auto, and they had a device that tested the charging system and the battery. The battery was bad, so they replaced it.
Racer
Joined: May 2006
Posts: 352
Likes: 42
i think my red top has shot craps because it can not hold a charge for more than two days, but i am going to charge it back up and read the voltage across it and put an ammeter in series to test for an abnormal current draw. now my question is that i have i know i have to wait until sleep mode to test the current draw and make sure the hood light is pulled, how do i open the p side door and pull the inside fuses to check circuits if i notice a greater than 25ma draw ? does this not take it out of sleep mode or do i have to disconnect the interior light too? also, i am looking at a napa battery to replace the red top at about half the price. anyone got recommendations as to a cost effective battery to put in if that is what it turns out to be? consumer reports recommends a die hard which is another option. you comments and recommendations will be appreciated.
thanks
thanks
DocOhm
Thread Starter
Pro
Joined: Apr 2006
Posts: 552
Likes: 0
From: Alton Illinois
i put my ammeter in series, opened a door and waited and the vette went to sleep before i did with the door open. my current draw dropped to between 70-80ma. i guess it should be around 25ma so i got some fuses to remove the battery dropped a volt during the waiting to go to sleep process so now i am going to keep it disconnected and check it in a couple of days (going out of town) to see if it holds a charge. my guess is that with an 80ma draw it wouldn't go dead in 3 days so i may have a bad battery as well as a current draw problem!
any ideas on suspect circuits?
any ideas on suspect circuits?
