12 months ago I had to replace my battery after it had apparently died in the bum. A couple of weeks back the same symptoms started appearing ie dead flat the morning after after having been ridden for 50km to work. I jump started the bike and took it to the place I got the battery from for testing (battery tested ok, charging max 14.3 v at 5500 rpm). No problem with the battery so next stop was to the dealer to have it repaired under warranty. Thankfully this time they listened to me and tested the charging system and found the normal output was 12.3 v at idle going to a max of 14.3v at 5500 rpm and then dropping off again after that to 13. something. Long story short the guy found a bad earth at the regulator and modified the wiring to improve the earthing capability. Now I'm wondering if my original battery was really stuffed or just drained over time like this current one. Anyone had similar happenings?

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Does this bike make my butt look big?

I did have similar problems a while back but I appear to have cured mine by fitting the correct relays for the headlamps. Those charging figures appear correct to me. What headlamp relays have you got fitted? Occurs to me that you might be barking up the wrong tree.

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H
'02 Tiger955i in black.

I had the headlight relay mod done for high beam by the dealer. They wouldn't do the low beam mod because of the existing low charge rates from this alternator. The charge rate of 12.3 is rubbish for a 13.2 v system. It means that it is slowly discharging over time. The other factor is the drop off at revs when it should increase (this being a partially discharged battery at this stage). It's fine now and once again running like a dream after they have repaired it. All the symptoms were the same as the first time I replaced the battery so I'll be having the old one recharged and tested just to be sure.

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Does this bike make my butt look big?