Battery works, impossible for me to replace, so cost me £130 in total
The battery came with the two specialised screwdrivers supposedly needed to replace it. The battery comprises 6 joined compartments which on the original were glued into the computer case, so I still had to take it to a repair shop for them to fit. It took them an hour, and actually three different screwdrivers were needed. Since the battery was replaced the touchpad behaves someone differently (the battery compartment is situated under the keypad), but I have no idea whether this is due to the replacement battery. So, the replacement battery works fine, I just hope it lasts longer than the original one (2 years). I give Apple 0/10 for design.
Verified purchase: YesCondition: New