Hello everyone! here Horace from Uruguay, South America.
In my country, the EUC´s are very rare to see and very expensive, the only brand that has vendors is Airwheel, for that reason, i have an Airwheel X3.
The X3 is fun and the speed or the torque are fine for me, however, the range are very limited.
My X3 is the 130 Wh version, which only has a maximum range of 8k away. (my weight is about 70 kg)
I have been thinking about doing and adding a secondary battery pack in parallel over the charger port, using the secondary package as a backpack.
I will buy 16 batteries Samsung INR18650 30Q and putt them in series, adding an secondary EMS board and connectors.
Im not sure how charge the packs using the X3 original AC adaptor:
A) Independent way, this mean charging the internal X3 battery in first place, and after that charge the backpack. Charging both coneccting the AC charger to the GX16-3 female conector on the backpack, which is atached to the X3 in parallell over the charge port..
I need a diagram on how to make this modification in detail, especially the wiring and the pinout on the GX16-3 male connector attached to the new battery.
I know that passiongadgets site sell ones ready to plug, but now they are out of inventory, and the seller is located Singapore, very difficult for me to bring them, due to Uruguay customs restrictions.
I made a simplified schematics on how i will make the battery, please any help will by appreciated.
Thanks in advance: