# Losing Battery Voltage

**URL:** https://forums.speedlife.net/t/losing-battery-voltage/35882
**Category:** NYSpeed Automotive
**Created:** [September 24, 2007, 1:52pm UTC](https://forums.speedlife.net/t/losing-battery-voltage/35882 "2007-09-24T13:52:39Z")
**Posts on this page:** 6
**Page:** 1

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### Author: ![boardjnky4](https://avatars.discourse-cdn.com/v4/letter/b/96bed5/32.png) [@boardjnky4](https://forums.speedlife.net/u/boardjnky4)
#### Post date: [September 24, 2007, 1:52pm UTC](https://forums.speedlife.net/t/losing-battery-voltage/35882/1 "2007-09-24T13:52:39Z")

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Car is a 1992 honda civic, has a vtec d-series motor in it.

Symptom: Car loses voltage over a fairly short period of time, about a few hours and its dead.

Known:

- Battery is only a few WEEKS old. With the positive terminal disconnected, it holds a charge as it should.

- With terminal disconnected, the car runs fine and with with plenty of incoming voltage from the alternator.

- With terminal connected, the car is losing voltage with the car being completely turned off. I thought there may have been an issue with wires from the stereo being disconnected, so i pulled the fuse, but the problem still persists.

Within a few minutes(5 or so) it drops a few tenths of a volt, so over an hour or two, its to the point where it just wont start at all.

Any ideas?

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### Author: ![Pauly](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/pauly/32/7493_2.png) [@Pauly](https://forums.speedlife.net/u/Pauly)
#### Post date: [September 24, 2007, 3:23pm UTC](https://forums.speedlife.net/t/losing-battery-voltage/35882/2 "2007-09-24T15:23:08Z")

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Hook the test light up and start pulling fuses till it goes out

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### Author: ![Justin](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/justin/32/7459_2.png) [@Justin](https://forums.speedlife.net/u/Justin)
#### Post date: [September 24, 2007, 3:31pm UTC](https://forums.speedlife.net/t/losing-battery-voltage/35882/3 "2007-09-24T15:31:13Z")

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Why was the battery replaced?

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### Author: ![boardjnky4](https://avatars.discourse-cdn.com/v4/letter/b/96bed5/32.png) [@boardjnky4](https://forums.speedlife.net/u/boardjnky4)
#### Post date: [September 24, 2007, 3:39pm UTC](https://forums.speedlife.net/t/losing-battery-voltage/35882/4 "2007-09-24T15:39:15Z")

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never had a good battery in it.

its looking like the alternator is the culprit. with the wire disconnected from the alternator, its fine, with it on, it discharges.

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### Author: ![ZOMGVTEK](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/zomgvtek/32/5063_2.png) [@ZOMGVTEK](https://forums.speedlife.net/u/ZOMGVTEK)
#### Post date: [September 24, 2007, 3:55pm UTC](https://forums.speedlife.net/t/losing-battery-voltage/35882/5 "2007-09-24T15:55:55Z")

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^ Wow, thats odd… Alternator is causing a load? Hmm… If it holds a charge overnight without the alternator connected, just get a new one off ebay or a junkyard… Possibly on here…

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### Author: ![boardjnky4](https://avatars.discourse-cdn.com/v4/letter/b/96bed5/32.png) [@boardjnky4](https://forums.speedlife.net/u/boardjnky4)
#### Post date: [September 24, 2007, 4:23pm UTC](https://forums.speedlife.net/t/losing-battery-voltage/35882/6 "2007-09-24T16:23:28Z")

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werd, it is odd indeed. And the green plug isnt even connected, its just the wire that feeds the power back to battery for charging. I tried a different wire to connect from the alternator back to the fuse box too, same thing happens. Its gonna be the alternator.
