08-30-2022, 03:20 PM | #25 | |
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08-30-2022, 03:24 PM | #26 | |
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https://bimmercat.com/bmw/en/search/...M8/USA/61_5973
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08-30-2022, 05:28 PM | #27 | |
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08-30-2022, 05:58 PM | #28 | |
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08-31-2022, 02:00 PM | #29 |
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In the M850 the lith is in the engine compt, and the AGM is in the trunk. Still need to know what the charging posts go to in the engine compartment of the M850's...the AGM or lith?
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08-31-2022, 02:24 PM | #30 | |
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Oh and with a bit more deep dive it looks like some M850i's have three batteries in total, two AGM and one Lith.
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08-31-2022, 02:37 PM | #31 |
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I could imagine them using only one battery on the M8 to save weight, I know I've never seen a battery under the hood of my M8 while working on it but never really looked for one. I can't imagine where it would be.
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08-31-2022, 04:10 PM | #32 | |
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08-31-2022, 04:13 PM | #33 |
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In the M850 the lith battery is located under a similar panel located here in the M8, but from what I can see in the pic it looks relatively empty in there:
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08-31-2022, 05:04 PM | #35 |
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Looked and there isn't anything there.
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08-31-2022, 05:28 PM | #36 |
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Just as I suspected, the question remains why does the M850 get additional batteries and the M8 not? Weight could certainly be an answer but then how did they make up all that missing power...thinking a much more powerful Lith for the M8?
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08-31-2022, 09:03 PM | #38 | |
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As far as why two batteries on the M850i compared to the M8... Heck dunno we will ever know that. It could be weight, or it could be the tech in the M850i was more of a hybrid get it working before they went full Lithium. Dunno
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08-31-2022, 09:11 PM | #39 | ||
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08-31-2022, 10:20 PM | #40 | |||
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09-01-2022, 07:46 AM | #41 | |
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09-01-2022, 09:38 AM | #42 |
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Yeah that is why I said weight savings. But for power it will be equal to what is needed only. If you look in the trunk you can see the larger room for the AGM is there.
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10-23-2022, 08:29 AM | #44 |
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Same battery question
I too have a 2023 M8 and will store it in the winter. You are right, this information is not found in the Owner’s Manual.
I just purchased an OEM Battery “Charger” (that’s their term for the maintainer). It has a Lithium Ion setting. According to the instructions with the Charger: When you first use it, detach the charging clips and plug the main plug into the wall socket and set it Lithium Ion. Then, unplug and attach the charging clips to the maintainer. Now, attach the red clip (under the hood as previously suggested) and then the black to ground post also under the hood. Then plug the main plug into the wall socket. It states that it will automatically go Lithium Ion mode. It appears the process is pretty straightforward. I will put my car away by around mid November. |
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