I was told the engine start battery replacement cost $1,000

Eric Greenwell wrote:


AT Parowan last June, one supper conversation with three owners of
powered single seaters detailed two propeller problems (manufacturer
took a season to sort out) and one battery failure (expensive) --
unusual, I suppose. But not engine problems, eh?


Were these all two stroke engines? And I'm very curious how a battery
failure could be expensive, given the low cost of batteries.