Battery replacement for the Intel® Desktop Board DN2800MT is described in the user's guide, starting on page 39. It states that the battery is attached to the board with an "adhesive pad". So you have to pry it off carefully, there is no mechanical latch.
As for the BIOS settings, you might have an issue if there is no power to the CMOS, e.g. when the battery is removed. (see top of page 39).
For embedded products, I highly recommend that you check out a full range of boards and other system elements that are specifically designed and supported for embedded applications. There are 2,500+ solutions available from the Intel® Intelligent Systems Alliance, Intel's trusted ecosystem of 200+ member companies serving the embedded space. You can learn more about it here:
I hope this helps
J. Felix McNulty
Community Moderator (Intel contractor)
Thanks for your response. I do have a copy of the user's guide. My issue is not with removing the battery from the board, but in unplugging the cable, namely:
5. Disconnect the battery cable from the Desktop Board battery connector
(Figure 15, A).
On the two units I tried, this was not an easy thing to do without damaging the cable or the board, despite having a decent set of electronics tools at my disposal. I believe there is a latching mechanism built into the connector in the form of a "nib" on the underside of the plug and two plastic "leaves" on the bottom of the mating connector. The nib pushes apart the leaves during insertion, but once fully inserted, the leaves come back together, partially trapping the nib. This may be intended as just an enhanced friction lock.
Assuming you're right about the lack of a removal tool, are there replacement batteries available with this connector? I do wish Intel had just used a standard 0.1" header.
1 of 1 people found this helpful
If you google "CR2032 with connector" you will find numerous online sources for this battery. Here's an example that has a good image so you can see if it's the right connector.
I hope this helps