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#1986260 - 02/23/10 01:16 PM 2005 P71 battery fail.
stavos Offline
n00b

Registered: 01/23/10
Posts: 10
Loc: Detroit
My '05 Crown Vic decided to not start this morning after 2 days of no use and cold weather. I charged it for 15mins and got the volts past 12 and it turned, altenator is charging it at 14.2 volts.

Looks like the battery can't keep a charge for a day or two of no use. What's the volt/amp requirements for a 05 P971?

I'd like a reliable battery so so i was looking at the Optima. Will this work for me?

•RedTop
•800 CCA
•1000 CA
•100 Reserve Capacity
•Requires 2 Bottom Snap-In Adapters, Check Hood Clearance
•UPC: 811405500008

http://www.oreillyauto.com/site/c/detail...03321&ppt=C0005

Thanks

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#1986562 - 02/23/10 08:14 PM Re: 2005 P71 battery fail. [Re: stavos]
Y_K Offline
Rookie

Registered: 10/04/09
Posts: 71
Loc: USA
If the drain is more than 80 mA than something is draining your battery. The best battery I know of is a Motorcraft battery. The bigger of the two. Around $115 at my dealer. I would recharge the one you have and check the drain with an ampere-meter (multimeter).
If you see the drain that is much higher, e.g. over 1 Ampere. Start pulling fuses one by one until you identify the circuit group that causes the drain.
_________________________
2001 P71 & 2004 LTC

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#1986609 - 02/23/10 08:51 PM Re: 2005 P71 battery fail. [Re: Y_K]
Nomad8326 Offline
A suspicious mind is a healthy mind.
Poobah

Registered: 02/03/08
Posts: 6013
Loc: Ohio
check for parasitic drain.

http://www.youtube.com/watch?v=yFCT-YZbU5o&feature=related

If you see its pulling more then it should start pulling fuses 1 by 1 until it goes down then inspect that circuit.
_________________________
2008 CVPI - Salem City Police Unit
2004 Explorer XLS
2005 CVPI - Black Lake Township PD #6 - SOLD

Oil Cooler Hose Replacement, Slow/Inoperative Window Repair - Cleaning Switches 95-02, 92+ Fuel Pump Replacement w/o Tank Drop, Broken Seat Bolt Repair, Vinyl Decal/Sticker Removal Tips

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#1986698 - 02/23/10 10:22 PM Re: 2005 P71 battery fail. [Re: stavos]
Big_Bad_Joe Offline
Poobah

Registered: 12/12/01
Posts: 8409
Loc: Rochester NY
charged should be 12.5-12.9 volts

have it tested... with extreme cold a dead cell will do what you are describing
_________________________
2006 LX with HPPBlue, Light Camel Interior,Magnaflow Exhaust,PI Zip Tube
Underdrives from ADTR.net
Pioneer AVIC X930BT Nav system, JL xD400/4amp, JL Speakers, Audiovox backup camera

2000 HPP RESURECTION RIP 8/17/2012 died in Dayton OH

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#1986703 - 02/23/10 10:27 PM Re: 2005 P71 battery fail. [Re: Big_Bad_Joe]
Stage2Vic Offline
Member

Registered: 01/31/10
Posts: 256
Loc: WI
Probably just a dead cell. Optima batteries are a waste of money, the red top is designed for extreme heat and vibration resistance, which won't really do you much good.

Go with Motorcraft if money isn't an issue, otherwise just go by CCA and length of warranty.
_________________________
Sig removed. Read the rules.

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#1986787 - 02/24/10 12:22 AM Re: 2005 P71 battery fail. [Re: Stage2Vic]
Blackcvpi Offline
Cynical Jackass
Poobah

Registered: 05/19/09
Posts: 5272
Loc: California
I have had good luck with Duralast Gold Battery's.
_________________________
2003 Crown Victoria ( AKA Car Craft Crown Vic ) ff, Trick Flow 38CC top end kit, Full SW exhaust, MM Airbox and MAF, ADTR zip tube, 78mm BBK Plenum and TB, Tuned by RET in Downey CA, Jmod, 3.73 with track lok, Naake coilover suspension, Henious control arms, Mettco watts link, Addco sway bars, 17" steel rims widened to 9.5 with 285/40/17 tire in the rear....more mods coming soon.

08 F250 Super Duty Lariat Crew Cab, 6.4 Powerstroke Turbo Diesel, Daystar leveling kit with Bilstien Shocks [/size]



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#1986807 - 02/24/10 01:17 AM Re: 2005 P71 battery fail. [Re: Blackcvpi]
SgtTaz Offline
Over the Hill

Registered: 01/24/08
Posts: 3131
Loc: Chicago, IL
I've always replaced mine around the 2 year mark. It's seems in cold climates it's the life cycle of a battery.(around here anyway)
I've had good luck with Die-Hard and the Motorcraft batteries.
_________________________

2006 CVPI Smokestone Metallic/ 2005 CVPI D.O.A (6/04/10)/ 2000 CVPI Blown engine (R.I.P)(SOLD)

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#1986835 - 02/24/10 02:39 AM Re: 2005 P71 battery fail. [Re: SgtTaz]
BlaineB Offline
Over the Hill

Registered: 09/21/06
Posts: 4182
Loc: *
What is an acceptable range for drain without having to worry about the battery going dead? 10 milliamps was mentioned in the video.

My battery generally does not have any problems in the summer but in the winter it sounds weak most mornings, especially if really cold.

If kept on the shelf for months it will keep a green eye but sometimes gets a very dim green eye or even red eye if installed in the vehicle during the winter months. I think I have to do a drain test.

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#1987358 - 02/24/10 06:44 PM Re: 2005 P71 battery fail. [Re: BlaineB]
stavos Offline
n00b

Registered: 01/23/10
Posts: 10
Loc: Detroit
Thanks for all the advice!

I'm performing a drain test right now. I used a light tester on the negative cable > neg battery terminal and got a fairly bright light. I left the battery unplugged for 15mins as well to allow the computer to go into sleep mode. I'm not to familiar with volt meters, but i'll try to look for the milliamps.

Funny thing is after the month of owning it I had zero issues until now with this drain. Very odd it would just cause problems now.

These are the instructions I used:
 Quote:
If no other electrical accessory is causing the battery to drain overnight a manual draw check of the electrical system will need to be performed. What this means is you will be checking the electrical draw the battery has on it when the car is locked up, with the key in the "off" position". First open the hood and disable the under hood illumination light, if equipped. Next, with the key off and the doors locked wait 15 minutes, then disconnect the battery cable on the negative side. (The 15 minute wait allows the computers to go into "sleep mode" and shuts down all electrical). Attach a test light between the negative battery cable end and the negative battery terminal. The test light should illuminate dimly or not at all. If the test light is on brightly there is a strong electrical draw in the system. To locate this electrical draw start removing fuses one at a time. When the test light goes out the circuit in question has been located. You will need a car repair manual to identify all accessories in a particular circuit, repair as needed and re-check system

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#1987411 - 02/24/10 07:58 PM Re: 2005 P71 battery fail. [Re: stavos]
Logix7 Offline
Over the Hill

Registered: 06/29/06
Posts: 1717
Loc: West of Chicago
if ur going REDTOP and purchasing it at sams club is an option for u, id strongly rec. going there. If i recall the redtops are like 139 or less...as opposed to autozone, advance, etc... they sell for damn near 200
_________________________


2004 Crown Victoria PI - Dark Blue Pearl
----------------------SOLD----------------------

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#1987433 - 02/24/10 08:26 PM Re: 2005 P71 battery fail. [Re: Logix7]
stavos Offline
n00b

Registered: 01/23/10
Posts: 10
Loc: Detroit
It's the battery.
I left it unplugged for 1 hour and it went from a full charge of 13 volts to 10 volts. I'll probably buy a Motorcraft.

Thanks everyone for the help!

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#1987442 - 02/24/10 08:38 PM Re: 2005 P71 battery fail. [Re: stavos]
watkd Offline
Over the Hill

Registered: 05/08/04
Posts: 4329
Loc: Tucson, AZ
Yes, you get what you pay for. Get the Motorcraft battery, it has been rated in the top 20 of car batteries by Consumers Reports. I got 8 years off of the original battery on my car.
_________________________
1996 Grand Marquis GS
246K

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#1987481 - 02/24/10 09:07 PM Re: 2005 P71 battery fail. [Re: Stage2Vic]
CVPI_GT Offline
How low is to low?
Over the Hill

Registered: 09/20/07
Posts: 2754
Loc: Richmond Va
 Originally Posted By: Stage2Vic
Optima batteries are a waste of money, the red top is designed for extreme heat and vibration resistance, which won't really do you much good.

Go with Motorcraft if money isn't an issue, otherwise just go by CCA and length of warranty.


i have had mine six years and it still holds fine i can blast my music with 2 12"s going for four or so hours and it starts no problem. so i hate to say it but your wrong.
_________________________
Phillip, December 2012 POTM Winner http://tinyurl.com/px2ufby

1992 Ford Crown Victoria S,
Suspension Mods http://www.crownvic.net/ubbthreads/ubbthreads.php?ubb=showflat&Number=2603760#Post2603760
Wheels & Tires http://www.crownvic.net/ubbthreads/ubbth...mp;#Post2606379

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#1987693 - 02/25/10 01:56 AM Re: 2005 P71 battery fail. [Re: CVPI_GT]
BlaineB Offline
Over the Hill

Registered: 09/21/06
Posts: 4182
Loc: *
I heard that Optima was bought out (not sure how long ago) and that the older batteries are definitely better than the newer ones.

I have had a RedTop in my Jeep for the past 2 years. Just recently if I don't start it for about a month or so or more it will be dead and I will have to trickle charge it. NO STANDARD CHARGING WITH THE OPTIMA BATTERIES!

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#1988144 - 02/25/10 06:28 PM Re: 2005 P71 battery fail. [Re: BlaineB]
Fordiesel69 Offline
Over the Hill

Registered: 09/16/05
Posts: 3635
Loc: Erie, PA
I would go with the aftermarket motorcraft, energizer or duralast gold. Stay far away from anything made by exide. Deka are really good too.

03+ OEM ford batteries that ship with the car are junk. The older ones back in 99 lasted forever. I still have the original in my 99' and 00'. My 99' lincoln with all the automatic crap lasted till early 09' as I bought the car it had a brand new wal mart battery.

And the longest lasting battery to date I have seen was my aunts 93 E-350 cargo van that had its oringinal battery until 08'. I was the one who changed it out. I even washed the inside of the battery and cut it open. Plates were sulfated but were not decomposing.
_________________________
rant2 ******Need your heater core replaced? Click Here******rant2
-99' Crown Vic Police Interceptor (SAP), 3.55 Trac-Loc(DK), Cloth Interior, Black Honeycomb Grill, Black PI Trunk Bezel, Silverstars, 155K
-00' Crown Vic Police Interceptor (SAP), 3.55 (R2), Cloth Interior, Black PI Trunk Bezel, 03+ Full Wheel Covers, Silverstars, 109K
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