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Sounds good. I believe the 2 kWh capacity is on the anemic side, and you should increase that to over 3 kWh for a motorcycle.
Note that 48V/3.6V = 13.33s. So 12s (12 in series) which is what the BMS says is too low. Either choose 13s or 14s, depending on what BMS you can find that meets your power requirement. You may be able to get away with 75A. And if you build two packs in parallel, then each of the two BMS needs only be 35A.
48V motor controllers can handle up to 65V in most cases, so I would recommend 14s which maxes at 4.2 x 14 = 58.8V. Or you may want to altogether go to 96V (27s) by connecting the two packs in series instead of parallel with a 96V motor/controller. In which case current draw will be 30A to 50A. Efficiency improves with higher voltage.
The charger is only 200W and will take forever to charge. I would recommend a 1200W charger and a 1 kW 36V or 48V power supply. The charger can be installed in the cycle. Here is an adjustable charger:
https://www.ebay.com/itm/1200W-DC-D...162690?hash=item4b1f914a82:g:HccAAOSwjIRZkT9L
Note that 48V/3.6V = 13.33s. So 12s (12 in series) which is what the BMS says is too low. Either choose 13s or 14s, depending on what BMS you can find that meets your power requirement. You may be able to get away with 75A. And if you build two packs in parallel, then each of the two BMS needs only be 35A.
48V motor controllers can handle up to 65V in most cases, so I would recommend 14s which maxes at 4.2 x 14 = 58.8V. Or you may want to altogether go to 96V (27s) by connecting the two packs in series instead of parallel with a 96V motor/controller. In which case current draw will be 30A to 50A. Efficiency improves with higher voltage.
The charger is only 200W and will take forever to charge. I would recommend a 1200W charger and a 1 kW 36V or 48V power supply. The charger can be installed in the cycle. Here is an adjustable charger:
https://www.ebay.com/itm/1200W-DC-D...162690?hash=item4b1f914a82:g:HccAAOSwjIRZkT9L