Note: It is necessary to use the plectrum to separate the two half-shells of the Dot, this to prevent any damage.
The battery type is CR2032.
1. Disassemble Dot with its removable magnet.
2. Push the plectrum into the notch to separate the two half-shells.
3. The battery is replaced by lifting and inserting the new battery on the opposite side to the two notches.
4. The assembly of the half-shells is done by prepositioning the two lugs with the two notches.