A tip for those who have the problem. The problem is still there but in the meantime before going to claim the warranty I changed the assist mode of ECO, TRAIL and BOOST so all of them are in the maximum (60 N) and then set the multiplier for your human power to 70% in ECO, 110% in TRAIL and...
Did someone find a solution for the intermitent drops? I have the same problem with my E7000. It happened with 80% battery and less. The motor starts giving me a drop in assistance till y cut completely. After a minute I can start normally for another 5 minutes.
I think is related with the...