 Electrical help |
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| Howard |
 Dec 12 2005, 11:54 PM
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Incontin(g)ent Member  Group: Benefactors Posts: 5,785 Joined: 24-July 03 From: Westlake Village, CA Member No.: 943 Region Association: None 
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A rare serious question from me. 73 914 2.0 FI. Pretty stock. Battery runs down, especially when lights are being used. Battery is good (Optima) and charges up to 13.7 volts. Reads that on my tester, which agrees with the in car ammeter. After starting, is slowly drops to just under 12v. Using the brake lights, turn signals, parking lights, back up light drops to 10v.
Wipers, emergency flasher, cig lighter cause no drop in reading. After turning off the lights, it only recovers to 12v, not the almost 14 I started with. Run with the lights on for 2 hours or so and car won't start. Quick charge or jump and I'm on my way, but battery will only recover after home recharging. WTF? |
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| Howard |
Dec 14 2005, 07:57 PM
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#2
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Incontin(g)ent Member Group: Benefactors Posts: 5,785 Joined: 24-July 03 From: Westlake Village, CA Member No.: 943 Region Association: None
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Damn, Frank. That's too complicated for me. I may be too old to drive at night (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif)
And James may have hit the nail. Trickle charge for a couple of days and 13.7 only drops to 13.5 with the lights on and engine off. So the dry cell likes the charge low and slow. And my guess is that emergency flasher circuit is on the 'other side' of ignition switch so drop doesn't show on in car ammeter. Will check charging system and let you know, but I'm running. |
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Posts in this topic
Howard Electrical help Dec 12 2005, 11:54 PM
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