Hi XJ I've just recently had to have breakdown out to restart my bike when would not restart 5 mins after 3 mile run It was slightly more difficult to start when started out, but when I came out of the building I visited, the battery was almost flat, and would only turn over a few (slowish) times, and then nothing - just a buzz when I pressed starter. The technical guy arrived and got it started on his jump starter, and it got me home (We let it run for five minutes to try and recharge battery, before I set off) It would not restart when left, so I set off with the engine started with the jump start. When I arrived home, I turned off the engine, left it for a minute, then tried to restart - almost no response, and back to the 'buzz' on starter button only. It is a gel battery, that I have had for about 4-5 years. Tried to recharge using optimum charger (initially 11.9v), went up to 12.6v Put back on machine and started immediately - let it run for 10 mins to try and recharge, turned off and left for 10 minutes - tried to start again, and flat again - nothing but a couple of slow turns then the buzz again. Any ideas anyone please? Are these the symptoms of when a gel battery have to be replaced? I have seen on youtube that you can actually recharge these batteries on the old analog type chargers, instead of using the new digital ones? And I don't want to buy a new battery, and find out that it was something else. Regards.