Could just need a new battery mate, mines never really drained my battery, came back from holiday the other day and its started up fine after a week or so and it being armed, probs just the battery
My battery is shít! Compared to my 125 Aprilia it doesn't last very long. Luckerly I've installed a kick start on my RE. So no worries there. I always kick it first time. Save the starter motor. Then when it's warm it needs like 0.5 seconds on the starter for it to start. Spot on!