 Battery Upgrade, Odyssey PC924 and Aluminum mount |
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| rfinegan |
 Jul 10 2020, 10:49 AM
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Senior Member  Group: Members Posts: 1,073 Joined: 8-February 13 From: NC Member No.: 15,499 Region Association: MidAtlantic Region 
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Parts arrived today for the install on my upgrade battery. Odyssey PC924 and Aluminum mount. Just need the terminal kit.
Will post a few pick of the install to follow.... https://www.ebay.com/itm/SR-Battery-Hold-Do...872.m2749.l2649 Streetray 925 mount -Robert Attached thumbnail(s) 
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| 914e |
Jul 17 2020, 03:44 PM
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Member Group: Members Posts: 497 Joined: 21-February 20 From: Arizona Member No.: 23,951 Region Association: Southwest Region
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Even in the 70's an alternator should be able put out enough current to run the engine , lights, and fans at idle. If you are seeing big voltage drops at idle, you have either added some loads the car was not designed for, or you have an alternator problem. A battery should not be discharging when the car is running. Unfortunately the 914 has no headroom for electrical accessories, of course in the late sixties there was not many electrical accessories.
When the car is off and battery fully charged it should be at 12.6 volts. If it is below that either the battery is bad the charging system is not working properly. If the battery is down a few tenths of a volt below 12.6 you have lost a large amount of the current capabilities of the battery. The battery when the car is running should be acting as a buffer. With the car running you should see 13.6 to 14 volts on a test voltmeter, I would not trust the gauge. According to the service manual the regulator is set to 14 volts. 13.7 to 14.2 is typical for lead acid 12 volt systems. In cars voltage is usually a symptom in a battery and charging system problem not a cause. The problem most of the time is current related. A clamp on DC amp-meter can take out most of the guesswork. |
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Posts in this topic
rfinegan Battery Upgrade Jul 10 2020, 10:49 AM
jim_hoyland :popcorn:
Like to see this; getting ready to rep... Jul 10 2020, 11:30 AM
JamesM
:popcorn:
Like to see this; getting ready to re... Jul 10 2020, 11:57 AM cali914 Great Battery 159 bucks 13lbs made my own battery ... Jul 10 2020, 03:37 PM VaccaRabite I have a 925 and it does not have enough energy re... Jul 10 2020, 07:10 PM wndsrfr
I have a 925 and it does not have enough energy r... Jul 10 2020, 07:31 PM JamesM
I have a 925 and it does not have enough energy ... Jul 10 2020, 11:28 PM nditiz1 Crap I just bought the 680, will that be up to snu... Jul 10 2020, 10:37 PM JamesM
Crap I just bought the 680, will that be up to sn... Jul 10 2020, 11:22 PM gereed75 I run 680 in my airplane. Runs everything no probl... Jul 11 2020, 06:10 AM rfinegan here is the tray ready for the mount Jul 11 2020, 06:55 AM rfinegan and the battery mount
Jul 11 2020, 06:57 AM ConeDodger
Parts arrived today for the install on my upgrade... Jul 11 2020, 07:11 AM 80’s old school I use an 11 pound Braille battery in my 914.
I a... Jul 11 2020, 08:48 AM BeemerSteve
I use an 11 pound Braille battery in my 914.
I ... Aug 26 2020, 05:23 PM nditiz1 @JamesM - Can you post a pic of your rennline mou... Jul 11 2020, 02:52 PM Root_Werks Run 925's in my Bugs and the 1200 in my 914-6.... Jul 11 2020, 08:46 PM rfinegan no hole drilling was used to add the mount:
Jul 12 2020, 06:20 AM rfinegan and the hold down side... Jul 12 2020, 06:22 AM snakemain My odyssey melted when my VR went bad, along with ... Jul 12 2020, 11:18 AM VaccaRabite I just pulled the PC925 out of my car and replaced... Jul 17 2020, 09:55 AM campbellcj I've had really good success with the PC680. I... Jul 18 2020, 07:41 AM rjames The battery mount looks plenty stout. How heavy is... Jul 18 2020, 10:28 AM andrewck
Parts arrived today for the install on my upgrade... Aug 26 2020, 04:22 PM Mark Henry I also have a 680, it cranks fast, the H3 pilot fo... Aug 26 2020, 05:03 PM rfinegan The weight of the mount is not much at all. It is ... Aug 27 2020, 04:42 AM rfinegan The weight of the mount is not much at all. It is ... Aug 27 2020, 04:42 AM Ian Stott I have the small odyssey battery, run lights, wipe... Aug 27 2020, 04:59 AM Mark Henry
I have the small odyssey battery, run lights, wip... Aug 27 2020, 08:19 AM |
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