Booster model 2016 controllers – on all scooters bought before 01.08.2017 – with the more sudden type of acceleration. They do not have the L1-L5 settings, you can check the version by simply turning off the scooter and turning it back on with the brake pressed. If the screen doesn’t show anything, it’s the normal Booster, if it shows L1, L2, etc. for speed, then it’s the 2017 model of Booster.
Booster model 2017 – this is the one with the new controller and smoother acceleration. It has the L1, L2,etc. settings for speed.
Booster PLUS model 2017 with the 6 pin connector for the display – it is the Booster PLUS with the old type of connection from the spring wire to the controller
Booster PLUS model 2017 with the Easy Connect plug to the display – this has been sold from 01.12.2017
Booster PLUS / S /V model 2018/19 – this has the new controller v1.37 (with the new P3 Sport option) and the Easy Connect plug. You can test to see if a scooter is this model if when you activate the P3 option the maximum speed of the scooter is more than 35 km/h. Works for all model batteries. 6.5Ah, 7.5Ah, 8.6Ah and 10Ah