[JakeMC EQC]

Hi Guys,

Does anyone know where the battery is located and/or how to disconnect it?

I need to unplug a few things in the centre console but first want to disconnect to avoid throwing any errors.

Cheers!

 

[Dar]

Mercedes say - If you have to disconnect the 12 V battery, contact a qualified specialist workshop. Sorry, that's all I know,

 

[Parkwood]

It is on the left hand (as standing at the front of the car) side at the back under a cover where the is a terminal to connect to with a red cover.

 

[Dar]

Of location, some photos are further down this page, as Parkwood mentions-

Mercedes EQC and dead 12V battery? There are connectors under the hood, you can charge - AvtoTachki

avtotachki.com

Regarding the procedure to disconnect, best talk to a EQ tech to avoid malfunction or worse - be interesting what advice they can give. I know someone who had a Prius with a flat 12v battery from being left at an airport and they tried to charge it themselves but ended up permanently and expensively damaging an inverter or other proprietary component. Also , vaguely speaking, on EQC the 12v might be needed for unfamiliar functions like to monitor cooling the high voltage battery after a drive or some other important function - not sure - but it may even power almost everything, including complex electronic control units, except power to the wheels and aircon:

Torque Shop: Why is there a 12v battery in an EV?

If electric vehicles (EVs) use high-voltage lithium-ion batteries, why do they still carry a 12-volt lead acid battery? Read more at straitstimes.com.

www.straitstimes.com

If the high voltage battery is recharging the 12 V after the car hasn't been used for weeks then that might theoretically be another problem with disconnecting with the wrong procedure I wonder