Smart Battery repairability 2 out of 10 (10 is easiest to repair):

Non-proprietary T3 Torx screws make repairs more accessible, but are covered by strongly-adhered microfiber liner.

Battery replacement is possible, but will likely destroy the microfiber liner.

The only possible repair—replacing the battery—is made difficult by very strong adhesive.

No other repairs are possible without destroying the device.