Wiring

Those hoping EM would tidy up the wiring will be disappointed.  It seems to get progressively more complicated with each design revision.  The only real simplification is in how the new SiliXcon SX controller connects. 

Fortunately, this mess is hidden and somewhat protected by the seat/rear mudguard.

The large flat 6-position AMP connector seen in the middle of the photo is likely for the motor encoder/temperature sensor.  It looks exactly like the connector used for that job on the ePure bikes.  This makes me think that motor position is probably again being sensed by a sin-cos encoder (see my ePure Motor page for more information). 

The battery power connector has been improved and will be discussed separately.

Battery Power Connector

The battery power connector is made by Ningbo Degson Electrical Co., Ltd in China. (Hereafter, I'll just write Degson.)

As you can see in the photo below, the large pins labeled 1 and 2 are for DC power.  It is a Degson EBBH.  The connector is rated for a continuous 120 amperes.  Although this may seem underrated for a motor that can draw over 300A peaks, it is a reasonable design choice.  Even with the big 2.5 kWh battery, a continuous 120A draw would only provide power for about 20 minutes of riding.  Clearly, the average current consumption must be well under 120A, otherwise riding time would be drastically limited.    

The small connector pins (4 and 6) are likely for communication with the BMS.  I'm guessing it may be via CAN bus.  Earlier EM models with the handlebar display had a separate 2-pin connector for BMS communication that reported state-of-charge and warnings for high and low temperatures.  (Interestingly, SiliXcon is selling Battery Management Systems too, so I wonder what we will find inside the new FACTOR-e battery?)

No fuse is apparent between the battery and the controller.  Perhaps there is one inside the battery?

As an aside, the battery is now held in the chassis by 2 Torx screws.  This is a simplification of the 3 hex-head screws found on earlier models.  Frankly, I'd probably replace the Torx screws with hex screws because I have a nice 8mm Motion Pro T-handle wrench that worked very well for the battery removal.

Battery Charger

The battery charger is new and looks to be higher quality than EM's older chargers.  It is rated for a maximum current of 15A on the DC side.  A nice case accompanies the charger.

The power cord is hardwired and the charger does not accept a universal AC input.  Therefore, different chargers will be required for different regions/countries.  

There is no manufacturer's name on the charger.  Although Degson does make EV chargers, they only provide photos of the plug, not the charger itself.  Nothing Degson sells looks like what is being used on the EM.  

The charger is model number 840BG4815L and has a bar code label that reads EMT48152404200018.  Unfortunately, a search did not yield any information.