Battery Maintainer

[D'Ecosse]

.... Now, if I sold subwoofer boxes and had over 50,000 satisfied customers, we might have an issue! :biggrin:

Too funny!!!!!

Hey, you know we'll let you slide 150 times or so before we get PO'd about it.

 

[NSX-Tuner]

Since my battery was drawn down (not dead but wouldn't start car) last weekend and after putting on over 2 1/2 hours of driving time, the in-dash voltmeter reads ~14V when key is turned on without engine running. After starting car, voltmeter read ~15V. I suspect this is normal considering the battery won't be fully charged for at least another 4-6 hours of driving time. Is this a correct assumption. After battery is fully charged, what should the voltmeter read with engine running?

thx...

Please note, I did a search and looked at FAQs and only found one post that briefly mentioned that he's seeing 15V with engine running.

 

[rbirling]

Since my battery was drawn down (not dead but wouldn't start car) last weekend and after putting on over 2 1/2 hours of driving time, the in-dash voltmeter reads ~14V when key is turned on without engine running. After starting car, voltmeter read ~15V. I suspect this is normal considering the battery won't be fully charged for at least another 4-6 hours of driving time. Is this a correct assumption. After battery is fully charged, what should the voltmeter read with engine running?

thx...

Please note, I did a search and looked at FAQs and only found one post that briefly mentioned that he's seeing 15V with engine running.

Someone will correct me if I'm wrong, but I would expect the voltage to always be a constant 15 or so while the engine is running. This is set by the alternator and regulator. When off, you should get 13.6 volts from a fully charged battery. This is from memory, unless the NSX has a fancier than normal system.... :smile: