Absolutely. Hidden by a panel held in place by plastic fasteners.

Rotate fasteners to remove panel.

Battery is buried in a cavity so it takes a bit of leverage to remove given its weight.

And note the unusual size and shape (translation: $$$ for an OEM replacement at dealer). Usually $300+

Mine went dead a couple of years ago and I got an Interstate replacement for around $125...

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2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car