On 3 Aug 2022, at 07:56, Ralph Heilig <ralph.heilig@...> wrote:

Hi Nick,

the battery for the MFDBB (Navent 3d Black Box)  is a CR 3032 but you don't have to change it since it has no use

Here the feedback from Furono support:

That is a common button cell battery and is not really used in the Kontron processor. Most remove the battery and put the bios setting not to check for the battery.

I have one in spare but never changed it.

Ralph
Santa Isabella
A54 #144