30-12-11, 05:34 PM
a battery a year does seem excessive, certainly way more than my bikes (and cars and vans) have ever needed and some are kept outside like yours and all have alarms and immobilisers.
halfords may have their knockers (ooerr) but they do have a no quibble warranty on their batteries. if they have to change one a new warranty starts on the replacement. worth considering?
alternatively one last battery purchase might be considered - and with 2 batteries one can be kept indoors and changed out for the other every week over the winter? a visit to a local breaker might well yield a suitable spare battery...
is it clean enough?