Went to remove the battery from my daughters Ka - what an awkward job. There is 25mm strap across the top, with a metal plate on te end which is bolted down at the. No room for anything apart from a socket and extension. Nut is 17mm with about 40-50mm of thread protruding so a standard socket will not fit. I had to find a long reach plug socket and remove the rubber insert, then with restricted access, 1/4 of a turn at a time undo the nut. What should have been a 5 minute task took an hour. Why do some manufacturers make things so difficult?