Ey up!
I've guessed summat right anyway.
I plugged the wire from the bluetooth box thing into the 'puter cus it looked like it would.
It seems that doing that has charged the battery up, cus the orange light that lit up has now turned green.
I thought p'raps plugging it in would down/up load some updates ir extra info or summat.
So, you can charge your battery up via the 'puter it seems.
That is incredible.
Oh, btw, the diy encyclopedia does NOT tell you about this feature.
Makes you wonder why they actually bother printing it ey?