I suspect there were other reasons. There was a GMC warranty agent here in Rockingham and I was in their shop one day and saw through an open door a mountain of faulty items that had been scrapped. The business was in a large factory unit with a really high roof and the pile which looked like an enormous Christmas tree almost reached the roof. In other words GMC were exchanging faulty products willy nilly. My own experience was one of their cordless drills, the batteries were not holding a charge so I phoned GMC and explained the situation and guess what, about a week later a brand new drill complete with it's two batteries arrived in it's original box. How can any company survive when A:it's products are not reliable and B: when they simply swap a product at the drop of a hat.
When I opened up the battery at least half the cells were totally dead and the rest close to it.
Nothing but heaven itself is better than a friend who is really a friend. - Plautus