After my latest prang my bike was off the road for 3 weeks while estimates were arranged and the 3rd parties insurance sent an engineer to have a nose. After they agreed to the estimate and coughed up I'm finally back on the road. Today I was heading to my bike when I spotted a mate and got chatting. My keys were in the ignition and it was on but the bike wasn't started - I usually allow the bike to idle while I put on my helmet and gloves etc. After about 10mins chatting I hit the starter button and nothing happened. Obviously 10 minutes with the headlights on (I always ride with headlights on) had drained the battery. A quick push and it started up. After 30mins riding through north London traffic I stopped at a petrol station and when I left it started first time. I've never had any battery problems with this bike and I'm not fussed about the cost of a replacement battery. Is it necessary or will the battery get back into shape with regular riding (I'll be using it daily again from Monday)? I don't have access to a voltameter.