Hi everyone! I’m riding my new build for like 1000km and it still runs great! I just want to share some of my thoughts about my battery pack. I’m just thinking about getting more range out of my pack because I think it can be better. I’m very happy with the max range I get now (25km agressive riding + 5km normal riding)
This is my board:
10S4P 30Q pack
60A bluetooth bms
Ownboard hubs
Ownboard esc
2A 41.5V charger
I discovered that if the battery hits around 3.5V / cell the board slows down and will completely stop at 3.2V / cell.
This is normal and programmed in the esc which is actually pretty healty for the batteries.
I can do around 25km of agressive riding and after that it gets ‘boring’ but it will still ride for like 5km. I did a 25km ride yesterday and the board started so no boring ride and charged it (only took 4h) I use a slow 2A charger and it charges at real 1.8A (I can see this in the bluetooth app from my bms) so that means 1.8A x 4h = ~7Ah
Now I was just inspecting the graphs of the samsung 30Q and chose the curve that shows these average values, so 7 / 4 = 1.75Ah / cell.
I was just thinking to use the new flipsky dual vesc so I could adjust the cut off voltage to get more range out of these beautiful cells. I know the cells need to put out much more current when going to a lower voltage but I’m not planning to pump up the amps of the motors, just set them on 10A per motor (now I pull 9A per motor and its fine for me) So I can ride ‘agressive’ for a longer time.
Has anybode ever switched from the standard hub esc to a vesc and got a much better range/performance of their battery?