My swytch battery just die, it serve me well in the past 2 years. It was all good but one of the problem is milage. I never have a chance to experience power assist level 5 due to battery capacity, I figure I could use this chance to upgrade it to a bigger battery and continue to enjoy daily commune on my 30 year old bike, especially when I could skip traffic in rush hours.
This file is for the bracket only, figure out wiring yourself, basically just connect the red wire and black wire to a 36v battery and voila! (of course you need fuse and a way to secure wire, also make it water proof, make sure you know which side is +ve & -ve. Modify at your own risk) Easy enough to find reference online though.
The author marked this model as their own original creation.