Muse (2016) Battery Replacement

Muse (2016) Battery Replacement
Device	Muse (2016)
Affects part(s)	Battery
Needs equipment	Picks, Precision Tweezers, Soldering Iron
Difficulty
Type

This article is a stub. You can help Repair Wiki grow by expanding it

"3" is not in the list (1. Easy, 2. Medium, 3. Hard, 4. Specialist) of allowed values for the "Repair Guide difficulty" property.

Problem description

Muse (2016) does not hold a charge. This is likely the result of a degraded battery.

Symptoms

Battery life less than two hours
Connectivity issues

WARNING: If your battery life is significantly less than expected, your battery may have degraded. If you are unable to get the device repaired, you should dispose of it, as degraded Li-Ion batteries are a fire risk.

Solution

Replace the battery.

Diagnostic Steps

Repair Steps

Replacement part required:

Using two guitar picks to disassemble a Muse (2016)
Open the clips covering the circuitry behind the left ear. Use a pick to pry open a gap, and use a second pick to undo the plastic clips. Note that there are clips on the underside, too.
Use tweezers to carefully remove the ear electrode connection.
There is a ribbon cable behind the board that connects to the main electrodes, and the battery is soldered to the board and glued to the back. Partially remove the board to reveal the battery. Be careful not to damage the ribbon cable. You do not need to disconnect the ribbon cable.
Taking care to make sure not to puncture or otherwise damage the battery, use a guitar pick to pry the battery loose. It can take quite a lot of force to remove the adhesive, so you don't need to be gentle, just be careful.
With the battery loose, desolder the battery connections, ideally with a chisel or other large tip. The ground plane is large and requires a lot of heating with a normal tip.
Using tweezers to remove the ear electrode connection on the Muse (2016)
Using a guitar pick to pry the battery in the Muse (2016) loose
Muse (2016) with desoldered battery