I bought a 2012 SV with 11 bars back in May. On my first day of ownership I dropped down to 10 bars. As of yesterday I'm down to 9 bars. My warranty is up at the end of August so here's what I've done to predict whether I'll be down to 8 bars by then.
Since I bought my 2012 SV I've put on about 28.5 miles per day.
As the miles added up, the battery capacity has gone down.
The battery capacity is well correlated to date, so let's extrapolate and see if I'll make the warranty.
Here, I've added the date cut off for warranty (the vertical line) and the AHr cut off at which I think I'll lose my 9th bar (41.75 Ahr). Unfortunately the trend show that I'll be slightly above cut off at the warranty date.
So what can I do to make sure things fall in my favor? I've been charging to 100% each day, but not really been doing anything else special. I live in NC so I'm looking forward to a nice hot summer. I welcome any comments or suggestions. Thanks!