F80 battery dead...HELP

[sirmix1]

I didn't drive my 2015 M3 for several months, battery died.

Voltage shows ZERO across multi meter

I tried charging it with CTEK lithium charger, no luck.

I tried jumping the car, no luck, car won't start.

Is paying over $2600 parts/labor for a new battery my ONLY option?

Had I known the battery costs over $2600, I would have started the car.

Am I SOL?

[Jbrown7403]

A very good option…..

https://f80.bimmerpost.com/forums/sh....php?t=1809127

[TractionControlDelete]

You can get it for WAYYY less than $2600 if you need to purchase a new one.

https://www.mlperformance.co.uk/prod...acb4&_ss=r

[behindthen0thing]

Originally Posted by sirmix1

I didn't drive my 2015 M3 for several months, battery died.

Voltage shows ZERO across multi meter

I tried charging it with CTEK lithium charger, no luck.

I tried jumping the car, no luck, car won't start.

Is paying over $2600 parts/labor for a new battery my ONLY option?

Had I known the battery costs over $2600, I would have started the car.

Am I SOL?

The battery has an undervotage protection that when the voltage drops the battery opens the circuit to prevent further draining and it will read zero.

"BATTERIES WITH "UNDER VOLTAGE PROTECTION"
Some Lithium batteries have an on-board UVP (under voltage protection) that
disconnects the battery to avoid it becoming too deeply discharged. This prohibits the
charger from detecting that there’s a battery connected. To bypass this, the battery
charger needs to open the UVP. There are two options available to “wake up” the
battery - automatic and manual.
During the automatic “wake up” period the LED will flash until the charge program
is started and LED is lit with a steady light. Automatic "wake up" will be active for
maximum 5 minutes.
If the charger is in Standby mode after 10 minutes ( power led is flashing) the
automatic wake up did not succeed. Try the manual wake up.
To use the manual “wake up”, press the Mode button for approximately 10 seconds
to bypass the UVP. During the “wake up” period the LED will flash until the charge
program is started and the LED is lit with a steady light. If the manual wake up is
unsuccessful the power LED will start to flash after latest 10 minutes. Disconnect any
parallel loads from the battery and try again. If the charging does not start after that, the
battery may need to be replaced."