I really would not get caught up by the scaremongering. Especially if you disconnect the battery, there is not much that will set the bag of as it needs the electric signal for this to happen. I had one roll off a bench onto a tiled floor recently and it remained in tact!
I forgot to say in my first post, to find the apertures to gain access to the springs, you need to turn the wheel 90 degrees off centre and access them from above.