Yeah, not saying this was definitely your problem, but just putting it out there for any who may not know - keeping your vehicle on a battery tender won't necessarily stop its battery from failing - even brand new batteries can fail!! And Realtor, if you've had your Spyder on a tender whenever it's not been running, that could well have been masking the gradual degradation that may have told you your battery was on its way out!! Plus, there's 'Battery Tenders' and there's 'Battery Tenders' - you need to use a good quality battery tender that's suited to your particular battery type and how it needs to be maintained, as well as keeping on top of any battery drain from the vehicle.... and it hasta do that in a way that doesn't 'kill the battery thru kindness'! :banghead:
It's a bit of a Catch 22 - if your Spyder's gonna sit for extended periods, it needs a tender to maintain the battery charge; but if you leave it on a tender all the time & only ever take it off to ride, you may not realise the battery is (slowly or otherwise) failing!! Until it just won't start one day - or worse, it might start OK initially, let you get some distance away from home & once you've stopped for whatever reason,
THEN it won't start again!! Luckily for you this time, it seems you got the 'good start' backing it into the garage, but that took all the 'surface charge' off the battery & the short run was not long enough to replace that 'used power', so now your battery is flat! :helpsmilie: But at least you're not a long way from home!!
I hope it's not, but from your description, it sounds even more like your battery has carked it, and it's time for a new one! :sour:
Good Luck! :thumbup: