possible dead battery?, 11.78 V |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
possible dead battery?, 11.78 V |
914 RZ-1 |
Jun 10 2018, 09:56 PM
Post
#1
|
Porsche Padawan Group: Members Posts: 682 Joined: 17-December 14 From: Santa Clarita, CA Member No.: 18,230 Region Association: Southern California |
1. My car has been sitting for awhile, but it has started up when I needed it to.
I recently took out and put back the transmission. I got everything hooked up and the car would not start. I took a reading across the battery terminals and got 11.87 volts. Is this an indication of a dead battery? 2. I should mention that I unhooked the positive and negative terminals while the trans was out. I also have a battery disconnect on the negative terminal (turn a screw to connect/disconnect). I got sparks when I hooked up the positive and touched the wrench to the car accidentally. 3. I have an Optima Red Top battery that is only about 1-2 years old. 4. I checked all the wire connections related to the trans and didn't see anything. That shouldn't matter anyway, I think. 5. I'm thinking of jump-starting the car and seeing if that works. 6. I'm also thinking of getting a battery charger and hooking that up. Thoughts? |
914 RZ-1 |
Jun 11 2018, 11:36 AM
Post
#2
|
Porsche Padawan Group: Members Posts: 682 Joined: 17-December 14 From: Santa Clarita, CA Member No.: 18,230 Region Association: Southern California |
I reconnected everything, including the ground strap.
I'm wondering what the correct reading for a good battery should be. I seem to remember reading that anything lower than 12 volts is considered in need of recharging. |
SirAndy |
Jun 11 2018, 11:53 AM
Post
#3
|
Resident German Group: Admin Posts: 41,601 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
I'm wondering what the correct reading for a good battery should be. I seem to remember reading that anything lower than 12 volts is considered in need of recharging. Without anything drawing from it, the reading should be in the 14v range on a good battery. However, that can be misleading since it easily can drop and not work correctly when you put load on it, even if it reads high otherwise. Get a cheap charger and hook it up and see if the battery comes back ... (IMG:style_emoticons/default/smile.gif) |
porschetub |
Jun 12 2018, 12:17 AM
Post
#4
|
Advanced Member Group: Members Posts: 4,696 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
I'm wondering what the correct reading for a good battery should be. I seem to remember reading that anything lower than 12 volts is considered in need of recharging. Without anything drawing from it, the reading should be in the 14v range on a good battery. However, that can be misleading since it easily can drop and not work correctly when you put load on it, even if it reads high otherwise. Get a cheap charger and hook it up and see if the battery comes back ... (IMG:style_emoticons/default/smile.gif) Yep without a load test waste of time ,so much the best way you can help sort this issue,a multi-meter and a bit of time you can find out a lot, even a basic Google search will give good starting points. Go well. |
Lo-Fi Version | Time is now: 18th April 2024 - 10:35 AM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |