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      04-30-2023, 03:08 PM   #14
zazzau
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Drives: 2021 M340i XDrive
Join Date: Mar 2021
Location: Earth

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Quote:
Originally Posted by asolare View Post
One thing for sure. If you do have one of the vehicles with the 48v lithium batteries it sure makes sense to hook the vehicle up to a trickle charger whenver you have any extended period where the vehicle isn't being used to protect the battery. At those prices it makes sense to do anything possible to exend the life of that battery.
External charging of the vehicle uses the 12v jump start terminal in the engine compartment — primarily for charging the 12-volt battery. External charging only happens when the hood is open: with the latch open, the trickle charge juices up the 12v battery.
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