Hello, I've been quoted £290 for a replacement battery for my bike, the battery it came with was a 36v 10ah phylion lion battery. Am I going to find anything a lot better for the price (or less) from another uk seller? I'm not so fussy about the shape (the one I have is a silverfish shape box), I'll get it strapped on the bike somehow for an upgrade/discount. The dirtiest of dirty cheap coupled with a low probability of the thing becoming a smoking toxic ruin, please.