Lightsaber Repairability Score: 10 out of 10 (10 is easiest to repair)

Extremely durable components make the need for repair unlikely outside of severe combat damage.

Robust diatium power cell lasts the life of the device.

Recharge port allows for topping up the power cell in extreme circumstances.

No adhesive anywhere; all components are removable with basic tools.

Replacing the rare Adegan crystal requires a trip to remote star systems, or paying a hefty fee to an enterprising smuggler.

Lack of published repair documentation means you'll have to rely on your Jedi abilities to figure all this out. (But the Force has a strong influence on our weak minds, so we're still giving it a 10/10.)