I managed to break my Parkside 20v range battery drill yesterday. The plastic casing snapped, between handle, and motor body, where the forward/reverse switch is. It still ran, so I lashed it together with an elastic band, whilst I finished what I was drilling. plastic was much thinner than I would expect. Nothing to lose, so I applied Gorilla glue to the broken edge, and clamped it together overnight. This morning it felt pretty solid.
In the meantime, so I could carry on working - I pulled out my old Makita, which had a suspect battery, last time I'd tried it, the battery had given up after just a few holes, this time it soldered on, drilling hundreds of holes. It had a battery, I had rebuilt with dodgy Ni-MH cells.