I can’t believe my Kronos is already over 10 years old. But it is, and as a consequence, it recently complained about a drained battery.
To do so, I used the following:
- CR2032 battery
- Some pillow or similar to prevent the controls from being damaged
- Screw driver
- Small wooden or plastic stick
- Rubber gloves
- Anti-static wrist strap, if possible (admittedly, I had none)
Here’s what I did:
- Disconnect all cables from the Kronos.
- Place it upside-down on some smooth surface. Use pillows or similar to grant some clearance for its controls.
- There are two different kinds of screws. Mark the bigger ones e.g. by using some tape.
- Remove all screws from the bottom panel, except the screws of the rubber feet. Keep the two sizes separated from each other.
- Remove the bottom panel (a screwdriver in one of the drillings should help to lift it).
- Put on the gloves and the anti-static wrist strap (aka e-bracelet), if possible.
- Locate the battery slot on the left hand side. Use some wooden or plastic stick to bend the clip backwards, then remove the battery (see topmost image).
- Insert a new battery, without touching it with your fingers to prevent corrosion (hence the gloves).
- Reattach the bottom board with the screws according to the markers. Tighten the screws, starting with the ones in the middle. Ensure to forget none.
- Boot up the Kronos. Press the DISK button. Select the file, then the utility page. From the menu in the top right corner, select »Set Date/Time«. Use the value controller to enter the correct data. Press OK.
- Reboot the Kronos.
That’s it. The battery alert should be gone for the next decade.