You said the magic word......alarm.
Whenever alarms are mentioned there's always an issue with batteries.
Sounds like a definite new battery to me, try and get one with the highest amps for your budget, the higher the better.
It can be worth paying a few quid extra for a decent battery, especially if you ride all year round in cold weather.
Make sure you measure the battery as well, i remember someone on here ages ago who's battery size was very different in size to most other peoples bikes for some odd reason.
Whenever alarms are mentioned there's always an issue with batteries.
Sounds like a definite new battery to me, try and get one with the highest amps for your budget, the higher the better.
It can be worth paying a few quid extra for a decent battery, especially if you ride all year round in cold weather.
Make sure you measure the battery as well, i remember someone on here ages ago who's battery size was very different in size to most other peoples bikes for some odd reason.
More people are born because of alcohol than will ever die from it.