Electrical Problem - Nissan : Datsun ZCar forum :Nissan Z Forum: 240Z to 370Z
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post #1 of 4 (permalink) Old 02-14-2017, 01:25 PM Thread Starter
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Electrical Problem

My wife's 1977 280Z runs great. However I think she accidentally took the key out while the ignition switch was in the "ON" position. (Switch shouldn't allow this but it does.) The next day I tried to start it and it would not start. Responded as if the battery was dead. I disconnected both terminals and attempted to charge the battery. Charger showed that the battery was fully charged and showed 12.1 volts.

I reconnected the battery and I tried to start it. Nothing from the starter, dash lamp was very dim and then went out.
Anyone have any ideas as to what the problem may be? Did leaving the ignition on cause an electrical problem? Any assistance is appreciated.

Rick
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post #2 of 4 (permalink) Old 02-14-2017, 03:47 PM
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Leaving your Z in the On position will drain the battery. Your symptoms point to either a now dead battery or it just didn't get fully charged. Automotive batteries don't do well with full discharges and showing only 12.1 volts might be a clue as it should be 12.6 volts. Charge it again and then take it to your local auto parts store for a load test. Batteries may show near full voltage when not under load but die right away when asked to deliver some current.

Scott
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9/74 260Z VIN RLS30 060061
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post #3 of 4 (permalink) Old 02-14-2017, 06:01 PM Thread Starter
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Originally Posted by beg3yrs View Post
Leaving your Z in the On position will drain the battery. Your symptoms point to either a now dead battery or it just didn't get fully charged. Automotive batteries don't do well with full discharges and showing only 12.1 volts might be a clue as it should be 12.6 volts. Charge it again and then take it to your local auto parts store for a load test. Batteries may show near full voltage when not under load but die right away when asked to deliver some current.
Thank you! I will try and charge it and if needed AutoZone is a block away.
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post #4 of 4 (permalink) Old 02-22-2017, 02:35 AM
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Thanks for sharing the information.....
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