Make sure you take it OUT of the holder if its a 2nd hand one, to see if it holds its charge.
Our rider Clint was had over like this earlier this year by a chap who sold him a 'working' one -trouble is it wouldnt hold its charge when out of the charge cradle, and he only found this out when he took delivery of it.
You 'can' pick up 2nd hand ones from £150 - £190 for the rechargeable ones, which are better to use than the hard-wired ones if you dont run a charging system on the bike.
Check out the bike forums - like
http://www.motoforum.net/ etc
Or new from AMB at £310 euros!!
CK
