SLGT750 Posted November 27, 2007 Report Share Posted November 27, 2007 Well I went out to start my car and the battery was dead. No problem, put the battery charger on it for a couple of hours went back out to start it, dead I knew there was problem with battery drainage but two weeks, hopefully it's just a bad battery. I am takin it to the dealer tomorrow to do diagnostics also I going to ask about the 2nd gear grinding and if they have had any issue with the 07 balancers. Link to comment Share on other sites More sharing options...
Grabber Posted November 27, 2007 Report Share Posted November 27, 2007 Unless you upgrade the alternator this will be an ongoing problem. ....and starting the car every week for 15 minutes and letting it idle will not fix it. Easy solution: Disconnect the battery. Be sure to roll down the window 1/2 inch before you do it or the window will drag when you go to open the door back up. Link to comment Share on other sites More sharing options...
DDT Posted November 27, 2007 Report Share Posted November 27, 2007 Try jump starting first. I make sure and start the car and run it to operating temp at least twice a week; it keeps the battery charged and engine oil suspended on the internal engine parts. Link to comment Share on other sites More sharing options...
Grabber Posted November 27, 2007 Report Share Posted November 27, 2007 Try jump starting first.I make sure and start the car and run it to operating temp at least twice a week; it keeps the battery charged and engine oil suspended on the internal engine parts. That will not charge the battery up any farther then it already is. It will just help hold it where it is at. You have to drive it to charge it. Idleing it with our current alternator will not charge the car. Period. Last post in this thread for me. Bye Link to comment Share on other sites More sharing options...
SVTpower Posted November 27, 2007 Report Share Posted November 27, 2007 2 hour charge may not be enough if it was really low............and as for the dealer on the balancer...............want to bet a lot of $$$ they'll tell you no issues.................dealer admitting of an issue............ah, c'mon now ) Link to comment Share on other sites More sharing options...
DDT Posted November 27, 2007 Report Share Posted November 27, 2007 That will not charge the battery up any farther then it already is. It will just help hold it where it is at. You have to drive it to charge it. Idleing it with our current alternator will not charge the car. Period. Last post in this thread for me. Bye Good, I get the last word then Jump starting from another large vehicle can be as good as installing a new battery for starting and running. Now if the battery can hold a charge could be another problem, but should get it running to take to local dealer Link to comment Share on other sites More sharing options...
SLGT750 Posted November 27, 2007 Author Report Share Posted November 27, 2007 2 hour charge may not be enough if it was really low... It did not even take a charge, not enough to roll down window or turn the interior lights on! So i'm sure it's a bad battery. Link to comment Share on other sites More sharing options...
SVTpower Posted November 27, 2007 Report Share Posted November 27, 2007 It did not even take a charge, not enough to roll down window or turn the interior lights on! So i'm sure it's a bad battery. Yup..........sounds faulty then........... Link to comment Share on other sites More sharing options...
Cobra GT Posted November 27, 2007 Report Share Posted November 27, 2007 I have several cars that do not get driven every week. I finally went to a Battery Tender. It keeps the barreries fully charged, conditioned and extends the battery life. Link to comment Share on other sites More sharing options...
svtkeith Posted November 27, 2007 Report Share Posted November 27, 2007 Well I went out to start my car and the battery was dead. No problem, put the battery charger on it for a couple of hours went back out to start it, dead I knew there was problem with battery drainage but two weeks, hopefully it's just a bad battery. I am takin it to the dealer tomorrow to do diagnostics also I going to ask about the 2nd gear grinding and if they have had any issue with the 07 balancers. Same prob here if you don't drive the car at least twice a week the damn battery dies. WTF's up with that. Link to comment Share on other sites More sharing options...
aonebadbone Posted November 27, 2007 Report Share Posted November 27, 2007 I have let mine sit for about two weeks and I have not experienced this problem Battery tender is a great idea Art. Link to comment Share on other sites More sharing options...
GT500 Posted November 27, 2007 Report Share Posted November 27, 2007 Well I went out to start my car and the battery was dead. No problem, put the battery charger on it for a couple of hours went back out to start it, dead I knew there was problem with battery drainage but two weeks, hopefully it's just a bad battery. I am takin it to the dealer tomorrow to do diagnostics also I going to ask about the 2nd gear grinding and if they have had any issue with the 07 balancers. When you get you battery issue resolved install one of these onboard battery chargers, plug in the car & forget about it....worked great for me all of the 2006-2007 winter, five long months. As well start the car a couple of times per month, & bring it up to operating temperature just to keep everything lubed. Link to comment Share on other sites More sharing options...
mciarochi Posted November 27, 2007 Report Share Posted November 27, 2007 Lead acid batteries go bad if they are fully discharged. After just a couple of complete discharges they will not hold a full charge. Also, if you have a low battery (won't hold a full charge) you will also ruin the alternator as it works too hard to charge the battery. That's any battery, any alternator. Bigger batteries and alternators take the abuse better is all. The battery tender is an excellent idea. You can also buy an Optima (gel) battery. Those can take repeated discharges with no ill effects. Just jump and go. They cost more, but it's the only battery I buy any more. Before starting after an extended park, pull the plugs and turn the engine over a couple of times under no load to get the oil in the races. This will prevent metal-to-metal contact when you crank it up. The alternative is to crank it up every couple of weeks. Link to comment Share on other sites More sharing options...
jcthorne Posted November 27, 2007 Report Share Posted November 27, 2007 That will not charge the battery up any farther then it already is. It will just help hold it where it is at. You have to drive it to charge it. Idleing it with our current alternator will not charge the car. Period. Last post in this thread for me. Bye Grabber, I do not know why you say this. The 3G alturnator puts out far more power at engine idle than any of the previous Ford designs. Ideling at 700 rpm, mine puts out 14.72 volts which is plenty to charge a slightly discharged battery. (thats with an already mostly charged battery reading 12.8 volts at rest). If your alturnator is not putting out over 14.6 volts at idle, either the battery or the alturnator is defective. It does put out significantly more amps at 1000 engine rpm and above. Link to comment Share on other sites More sharing options...
Shelby3 Posted November 27, 2007 Report Share Posted November 27, 2007 My car sits 2 weeks at the time and I never had a discharged battery. Something is wrong in my opinion. I do like the battery tender idea. That is what I use for my motorcycle. Link to comment Share on other sites More sharing options...
chuckstang Posted November 27, 2007 Report Share Posted November 27, 2007 I had this issue last month after not driving for 2 weeks For me it seemed like a bad connection at the negative terminal Link to comment Share on other sites More sharing options...
Just Tony Posted November 27, 2007 Report Share Posted November 27, 2007 Same experience - 2 weeks no drivey = no starty. But in my case, I had left my radar detector plugged in to the center dash power port and turned on. And while it helped me not get pulled over while it was parked in my garage it seemed to be the main culprit in the battery getting completely discharged. I started making sure I unplugged the radar detector and since then I have left it for several weeks with no problem starting it after that. Link to comment Share on other sites More sharing options...
SLGT750 Posted November 27, 2007 Author Report Share Posted November 27, 2007 Well I just got back from the dealer(had to leave it there ) I tried to jumpstart it with my Excursion and still would start just click and try to turn over, definitely bad battery. So I had an Optima from my boat put it in and vrooom! The dealer said it would take 3 hours to run diagnostics on it Oh well. They told me I have to drive the car every 3 days to maintain the battery looks like I am getting a battery charger/maintainer or I could get some studded snow tires . Also brought up the other issues I have been having such as high idle as I am coming to a stop and the 2nd grind/stop we'll see what they come up with? Link to comment Share on other sites More sharing options...
Dropping__Chronic Posted November 27, 2007 Report Share Posted November 27, 2007 Well I just got back from the dealer(had to leave it there ) I tried to jumpstart it with my Excursion and still would start just click and try to turn over, definitely bad battery. So I had an Optima from my boat put it in and vrooom! The dealer said it would take 3 hours to run diagnostics on it Oh well. They told me I have to drive the car every 3 days to maintain the battery looks like I am getting a battery charger/maintainer or I could get some studded snow tires . Also brought up the other issues I have been having such as high idle as I am coming to a stop and the 2nd grind/stop we'll see what they come up with? They told you that you had to drive the car every three days to maintain the battery with a straight face? wtf? I go on vacation for weeks sometimes and never had a car die on me or battery go bad. Tell them to fix it or replace it and that isn't something that is 'normal'. Man...what WON'T a dealership say? Link to comment Share on other sites More sharing options...
Alloy Dave Posted November 28, 2007 Report Share Posted November 28, 2007 Same prob here if you don't drive the car at least twice a week the damn battery dies. WTF's up with that. Mine has sat for 2 weeks several times with no issues. Link to comment Share on other sites More sharing options...
CobraCrazy Posted November 28, 2007 Report Share Posted November 28, 2007 They told you that you had to drive the car every three days to maintain the battery with a straight face? wtf? I go on vacation for weeks sometimes and never had a car die on me or battery go bad. Tell them to fix it or replace it and that isn't something that is 'normal'. Man...what WON'T a dealership say? No kidding! CC Link to comment Share on other sites More sharing options...
Joemat Posted November 28, 2007 Report Share Posted November 28, 2007 No kidding!CC To all my foul weather firends....BATTERY TENDER..........plug it in and forget it. Car will be ready for your occasional winter start. And for god's sake, get no road salt on that car (you thought the rear-ends were rusting with just summer rain water!!). Regards, Joe Link to comment Share on other sites More sharing options...
jcthorne Posted November 28, 2007 Report Share Posted November 28, 2007 If your battery dies in less than a week, the battery is bad or the alturnator is not fully charging it. Period. If the dealer tries to tell you otherwise, they are trying to avoid warranty work again. Find a better dealer. Likely the battery. The OEM batteries are pretty bad from the flat rock plant. The replacements from Motorcraft that the dealer uses are FAR better batteries and generally last for years. Link to comment Share on other sites More sharing options...
al ellison Posted November 28, 2007 Report Share Posted November 28, 2007 When I received my car, she had a bad batter. The local dealer (not whom I bought it from), tested for about an hour and then put in a new battery while I waited. I have had no problems since. Sometimes my car does sit for a week or two between drives. Grabber - are you stating the alternators are bad and need to be replaced? Thank you. Link to comment Share on other sites More sharing options...
chuckstang Posted November 28, 2007 Report Share Posted November 28, 2007 They told you that you had to drive the car every three days to maintain the battery with a straight face? wtf? I go on vacation for weeks sometimes and never had a car die on me or battery go bad. Tell them to fix it or replace it and that isn't something that is 'normal'. Man...what WON'T a dealership say? They wont say, "Here is a GT500 for 500 over invoice" Link to comment Share on other sites More sharing options...
aonebadbone Posted November 28, 2007 Report Share Posted November 28, 2007 When I received my car, she had a bad batter. The local dealer (not whom I bought it from), tested for about an hourand then put in a new battery while I waited. I have had no problems since. Sometimes my car does sit for a week or two between drives. Grabber - are you stating the alternators are bad and need to be replaced? Thank you. No that is not what Grabber is saying. At idle the alternator is just putting out enough energy to run the motor and what ever accessory's that are on. The alternator is not designed to charge a dead battery it is designed to MAINTAIN the battery at acertain charge. If the battery goes below that it puts to much of a load on the alternator and will burn it up. If the battery is dead and it needs to be replaced then usually there is a reason. Auto technicians usually suggest a alternator replacement because it didn't maintain a charge on the battery that was in there. Generators will charge a dead battery without to much of a problem but alternator's are not designed to do that. Charging a battery with a charger is not that hard but you must have patience as it will take hours with a dead battery. If battery have removable covers then remove them and check the electrolyte levle. If it is low then fill with distilled water. Hook red to positive and black to ground thee check that all the switches are in the proper position then plug in. Note where the needle is on the amp gage when you start come back in a hour and see if the needle moves. If the needle moves then you're battery is taking a charge but If it doesn't move then check back in a 1/2 hour if still no movement then battery is junk. I hope this helps Art Link to comment Share on other sites More sharing options...
mciarochi Posted November 28, 2007 Report Share Posted November 28, 2007 Man...what WON'T a dealership say? They won't say, "That's not a problem (sir or ma'am), we can see that's a problem and fix that right away at no charge!" What Art said about the alternator. You burn them up if you have a bad battery, they just aren't made to charge batteries. If you have a battery gone dead a couple of times, it probably is not holding a charge, and you will end up replacing the battery and alternator. Missing the obvious thing that nobody's mentioned - the second thing I thought after opening the hood was "That's an awfully dinky battery!" It does not surprise me at all that with the various electronics that stay awake in that car, particularly active anti-towing, that the go-cart battery they gave us croaks in two weeks. Just for reference, the battery in my Taurus SHO is 910 cranking amps. The GT500 is 590. That's twice the battery to turn over half the motor. Link to comment Share on other sites More sharing options...
DutchGT500 Posted November 28, 2007 Report Share Posted November 28, 2007 Just buy a battery tender. Problem solved. Every battery will drain because of the alarmsystem on this car. I have my Shelby and Cobra on tenders the whole winter. Link to comment Share on other sites More sharing options...
SLGT750 Posted November 29, 2007 Author Report Share Posted November 29, 2007 We'll they said the battery was bad and had a short in it, FWIW this was the first time the battery was drained since I have owned it, maybe in transport it had to be jumped dunno! I think the cold weather probably had something to do with it going bad. I did pick up a CTEK 3300 yesterday so I should be good to go. I now have a brand new battery but a scratched fender (see Venting topic in OFF TOPIC FORUM) Link to comment Share on other sites More sharing options...
shel-b001 Posted November 29, 2007 Report Share Posted November 29, 2007 Just buy a battery tender. Problem solved. Every battery will drain because of the alarmsystem on this car. I have my Shelby and Cobra on tenders the whole winter. Do you disconnect the + when you hook up your battery tender ????????? Link to comment Share on other sites More sharing options...
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