02-26-2015, 11:02 AM | #23 | |
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AW/Carbonstructure 6MT 2015 M3 picked up 8/22/2014. Stripper except for adaptive suspension. Weighed at 3,450 pounds with 1/4 fuel. 70,000 miles as of February 2020.
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02-26-2015, 12:18 PM | #24 | |
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02-26-2015, 12:45 PM | #25 |
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CTEK is the oem supplier for Porsche battery tenders as well. The GT3 RS I specced with the optional Lithium Ion Battery and the charger was identical for either type of battery. it plugs into the the lighter plug or you can connect with mini aligator clips. And no you don't need to keep the car on a battery tender as long as you drive once every 2 weeks. caveat to very cold weather climates. but the support bladder around this car's battery probably helps with thermal management much better than in the stuttgart pony.
here is the porsche battery tender. http://www.suncoastparts.com/product...t3_electronics btw the li-ion battery on the gt3 was a $1600 option. as a replacement its over $3k!
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Last edited by karussell; 02-26-2015 at 12:50 PM.. |
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02-26-2015, 12:53 PM | #26 |
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02-26-2015, 01:01 PM | #27 | |
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Edit found the info on weight thanks to EAS. http://f80.bimmerpost.com/forums/sho...11&postcount=1 Mike Last edited by Mike@N54Tuning.com; 02-26-2015 at 01:11 PM.. |
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02-26-2015, 01:18 PM | #28 |
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I read somewhere that it weights about half of the traditional one, 13kg or something like that
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02-26-2015, 01:20 PM | #29 |
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That's a lot of money for some weight savings. A normal lead acid battery will work fine, they're not putting the Lithium Ion battery in there because of it's performance, they're putting it in because it's half the weight.
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02-26-2015, 01:25 PM | #30 | |
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Weight of F80 M3 / F82 M4 Lithium Battery http://f80.bimmerpost.com/forums/sho....php?t=1004967
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02-26-2015, 02:11 PM | #31 | |
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02-26-2015, 03:44 PM | #32 | |
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The charging system on the F8x car is different from past BMW models. I believe my buddy at BMW AG told me that the charging system can output up to 18 volts to the battery. Most cars only put out 14 volts - to charge their batteries. So you can not use the old types of batteries in the F8x cars. You must use this Li-ion battery. Dackel
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02-26-2015, 03:49 PM | #33 |
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02-26-2015, 03:53 PM | #34 | |
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Looks to me like that's a 12 volt battery. |
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02-26-2015, 04:11 PM | #35 | |
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AW/Carbonstructure 6MT 2015 M3 picked up 8/22/2014. Stripper except for adaptive suspension. Weighed at 3,450 pounds with 1/4 fuel. 70,000 miles as of February 2020.
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02-26-2015, 04:12 PM | #36 |
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When I picked up the car and sales went over the paperwork, they specifically stated that batteries on the M4 are not part of the free service done during warranty.
But I figured the battery would not be required replacement within 1-2 years. But that is what he stated. Found the paperwork, and it shows "New Vehicle Warranty Excludes": - Exterior Paint - Interior Finish - Tires - Wheels - Battery "Maintenance Program Includes": - Annual Service - Oil Change - Engine Belt - Fluid Flushes - Oxygen Sensors - Wiper Blades - Tune Ups - Brake Pads & Rotors Last edited by nene; 02-26-2015 at 04:20 PM.. |
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02-26-2015, 04:13 PM | #37 | |
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02-26-2015, 05:03 PM | #38 | |
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The battery itself has electronics integrated in it which are part of the running system of the car. If you look at the stickied thread, the massive technical detail guide (whatever it's called) goes through the battery and all the vehicle systems functions contained within the battery. From my reading, what I gather is that the vehicle would not start at all without the LiIon battery installed with it accompanying electronics package. |
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02-26-2015, 05:14 PM | #39 | |
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It is Indeed for all of Its Performance Not Just Weight Savings
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I look forward to seeing the person who puts a lead battery in the car and hear how they make out. That is an experiment I think involves a bit of risk, too much for my electrical likings.
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02-26-2015, 07:04 PM | #40 |
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Sorry I should have specified. They quoted me $1200, but luckily it was covered under warranty. I would have gone livid otherwise. It had the battery warning when I rolled it off the lot but they told me it'll go away after I drive it awhile. However after 400 miles I was still getting the warning. Weird thing was the car still started up just fine and everything worked fine.
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02-26-2015, 07:14 PM | #41 |
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Look at your iPhone battery same technology only a fraction of the power yet it cost 100. Lithium [Li] is a very reactive thus unstable in natural form therefore it's expensive to process, handle and ship. It can also be very dangerous and more complicated to charge correctly (Boeing dream liner). Given the size of the battery in the M3/M4, the price is not out of line with a Li-Ion battery of that size.
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02-27-2015, 06:10 AM | #42 | |
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If your car couldn't run off a regular lead-acid battery, then it would definitely have an issue being jumped by a lead-acid battery (since the other power doesn't disconnect the moment the car fires). Batteries inherently have to operate under a very wide range of outputs due to variances in charge state, temperature, and demand. They need to be able to output a certain minimum power; they DO NOT need max-power all the time nor when starting the car. Which is why a car with a half-charged battery in 0 degree weather can sometimes still start. The more I think through this, the more I'm of the mindset that "in a pinch I could run this thing off a 12-volt lead-acid battery and it'd manage itself fine. Unless I see a statement from BMW telling me otherwise, or that the car can only be run on a LI-Ion battery, then I'm assuming it can use different power sources. Joe P.s. I could totally be wrong. I'm just using logic, my understanding of electrical systems and batteries, and the lack of any contrary statement by BMW to this affect. Consider this: MANY shops around the country/world have "shop batteries" sitting around for use in starting/charging situations. They are usually honking big lead-acid batteries. I see no warning anywhere from BMW to only use LI batteries when starting or operating this car...?
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AW/Carbonstructure 6MT 2015 M3 picked up 8/22/2014. Stripper except for adaptive suspension. Weighed at 3,450 pounds with 1/4 fuel. 70,000 miles as of February 2020.
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02-27-2015, 08:00 AM | #44 |
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So Anyone have any idea how long these batteries would last without being started and garage stored during winter conditions without any type of slow charge attachment? Sounds like weeks not months, which is ridiculous when you take into account the costs involved, of car & battery.
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Last edited by shortseller; 02-27-2015 at 08:11 AM.. |
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