I was afraid of something like this, but haven’t had any issues. Only thing missing is the battery information, charge cycles etc. Battery percentage can be seen on the display, but that is probably straight from voltage.
But it would be so nice to build with these cells, INR21700-M58T, around 530Wh(2 kg) main battery and 260Wh(<1kg) extender.
Since my 720Wh battery I run now is too much in most cases. I run out before the battery does.. And removing almost one kilogram from the front of the bike would...
One concern I have is if I empty the main battery and then connect fully charged range extender. Then I would be feeding over 50V from extender and less then 40V from main battery at the same time. How does the motor react to this?
So planning a range extender for my LCE930. Is there any reason this would not work?
Charging connectors could be different but need to be 4pin minimum and handle 20A. Easier would be to use the battery balancer, but then I would need a second port to connect the range extender.
So an update to this, did two rides, same terrain similar distance and time. First one 45% battery left with mostly in assist level 3 and second one on assist level 2/3 ended up with 48%. So everything seems fine now.
One note is that 20% assist on Eco mode is really low, it feels like the...
I tried this firmware, thanks! I rigged my camera to film the display since it is hard to watch while riding. I managed 607W maximum on Boost mode, so seems correct, 48V x 12A = 576W. So about 100W more than previous 48V09A.
On other assistlevels it drops about 20% per level as I have put them...
So earlier I could easy push over 500W, but not keep it for long time. It would take a steep hill and we don't have that where I live and my stamina is not good enough for that. When the speed is rising, the motor assistance drops, I have 35km/h limit.
I weigh 90+kg geared up.
Not much climbing...
So I checked in Besst Pro, I had all levels on full power:
This means whatever I change in GO+ has no effect on controller. Only speedlimiter seems like it is actually doing something. My GO+ connects fine and everything seems to work, even changes made are "succesful".
I changed the assist...
So I rode two rides this week, almost identical, about 37km. Temperature was same on both, couple of degrees below zero Celsius. The first one I used S+ mode all the way. The second I was on Eco mode all the way. Started both on 100% battery. The first I ended up with 16% battery left and the...
I had same issue with installing the motor and holding the two spacers in place. I ended up filing down the non-drive side spacer flange. Makes it much easier to install since the drive side spacer stays relatively good in place and I can put the other spacer there when the bolt is half way...
1. I have DIY battery, 720Wh. I have only ridden this bike in the cold, since winter came early and has been very cold. Last ride was a 3h ride with -14 degrees Celsius, 45km only trails, battery went from 100% to 11%. I am waiting for warmer weather because I think range should be much longer...
I have 48V version and I updated the firmware via GO+. It was Jim from LightCarbon that sent my motor ID to Bafang so I get 48V firmware. Previously I only got 36V version.
You can check for new firmware in GO+ and before updating you will see the firmware name, it tells you for what voltage it...
I got DC-DC converter and relay as well. It is nice when it is working, but as you said, it is a pain in the ass to get all the cables in and connected when installing the motor! 😖
The DC-DC converter is very small and inexpensive. Mine gives 3 amps, so 36W maximum. I think that is enough. I...
The headset is designed so you have cables straight through, but in reality they are at an angle leaning against the sharp edges. So when turning the handlebar it is chewing really bad into the cables.
So while changing brakes I noticed what others have mentioned here also. The headset is wearing down the cables and hoses very quickly.
This is my brake hose:
So I should probably get a different model, but for now I sanded down the sharp edges and hope for the best: