I've actually managed to go out on the bike this weekend and there is still something not quite right, but i believe it is in the settings of KT-LCD3.
The bike itself flies along quite nicely and that is part of the problem. The motor doesn't appear to be cutting out at 25km/h and i believe this is causing more power drain from the battery than normal.
For example, this morning I went out for a reasonable 11 mile ride, which is quite hilly. The battery was fully charged and on the bike showed 41.6v. After the ride it was down to 36.6v, the display was showing 1 bar although the battery itself showed 3 bars. To my mind, that's about 50% and therefore the range of the bike is about 22 miles. This is on a new 12.8Ah 36V battery.
On my old setup, with a 10.4Ah 36v battery I was doing 25 miles and still have 2 bars left on the battery itself, so an expected range of maybe 30 to 35 miles.
I appreciate this may simply be my interpretation as I never previously took actual voltage readings.
The settings I currently have are:
Motor Cutout: 25km/h
Wheel : 700c (although actually a 27.5" wheel but no setting for that)
P1 170
P2 1
P3 1
P4 0
P5 15
C1 5
C2 0
C3 8
C4 3
C5 10
C6 3
C7 0
C8 0
C9 0
C10 n
C11 0
C12 4
C13 0
C14 1
P1 I'm still playing with, but it seems to be pretty close speed wise to the GPS reading.
The Power Assist settings appear to be wrong. At level 5 i get great assist, it shows 500w of assist, but P4 is cutting out at only 250w and below that it is negligible such that level 1 is about 20w. Is there a more linear setting so that level 1 is 20%, 2 is 40%, 3 is 60%, 4 is 80% 5 is 100%? At present it seems 4 is 50% and 5 is 100% so it's a big step up.
Secondly, why am i still getting assist about 15mph? I think this is contributing to the power drain as the motor is always 'on' even when I'm pedalling at 19 or 20 mph, i'd expect to be under my own steam at that point.
Don't get me wrong, it works great. But too great.
Any pointers?
Many thanks.