After trawling through loads of similar requests on yacf, and recommendations from various trusted contributors, I bought one from
here.
BUT I only ordered it yesterday, and it isn't currently in stock, so I'll have a couple of weeks to wait, and longer before I can confirm quality.
As
@Neilsmith has pointed out, random
ebay purchases may result in tears or worse. Some seem suspiciously cheap, and there's probably a good reason for this, while mdsbattery seem to be well established and have a reputation to protect.