So impressed with the quality of the website, the clarity if the guide, the quality of the toolkit, all the packaging, and not least, the whole attitude and ethos of the company about avoiding waste and empowering self-help. A+, 5☆ rating all around.
There was a little adhesive foam protective pad placed on top of the seam between the battery cable connector and cable receptacle on the computer. Peel off the foam pad in order to separate the connector from receptacle. It detatches simply by sliding it out from the receptacle body. This is easy by curling index finger resting the finger nail on top of the connector, almost like you would scratch an itch. (This was the only part of the repair that was challenging, because not obvious how to do it with the foam pad stuck on the connector.)