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| battery readings https://auszookers.com/forum/viewtopic.php?f=5&t=10593 |
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| Author: | slowsierra [ Mon Mar 22, 2010 8:01 pm ] |
| Post subject: | battery readings |
hi all just after some figures on what voltage readings i should be getting off my battery when the motor is not running and when it is running. i went to start my car yesterday and it just made a ticking nosie from the fuse box in the engine bay the starter motor didn' tturn over.i starter motor has been sticking a bit lately. i have a 1.6 coil pack baleno engine in a sierra. any help would be great thanks greg |
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| Author: | royce [ Mon Mar 22, 2010 8:04 pm ] |
| Post subject: | Re: battery readings |
not running 12.8v or more is fully charged, 12.0 is roughly 50% running about 14.4v over 200rpm or so, should change too much with teh high beam on idle would be nice to be over 13v, but depends on state of charge in the battery |
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| Author: | slowsierra [ Mon Mar 22, 2010 8:18 pm ] |
| Post subject: | Re: battery readings |
i am getting a reading of about 12.35 v dc and when i turn the key it goes down to 7.42 v dc and the relay in the engine bay fuse box starts ticking. |
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| Author: | royce [ Mon Mar 22, 2010 8:30 pm ] |
| Post subject: | Re: battery readings |
are you measuring on the battery post or on the terminal? sounds like the battery is stuffed or you have a really dirty connection between the battery and exactly where you measured it |
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| Author: | weaves [ Mon Mar 22, 2010 9:19 pm ] |
| Post subject: | Re: battery readings |
i've got a battery that fell over during transport and it leaked a heap of acid out. it reads its 12.8v but doesnt have the amps the turn the engine over. sounds like yours is the same. like its dropped a cell. weaves |
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| Author: | slowsierra [ Mon Mar 22, 2010 10:09 pm ] |
| Post subject: | Re: battery readings |
ok thanks i will try a different battery if i can get my hands on one. cheers greg |
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| Author: | jdk81 [ Tue Mar 23, 2010 1:57 am ] |
| Post subject: | Re: battery readings |
My battery sits between 12 and just under 13V (i drain it a lot with my stereo when the car is turned off). When running, my car never goes above 13.8V, and the only time it went under was when my old alternator carked it. |
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