Yes, everything you said can be used after logging in. The 48V40AH can actually travel 140 kilometers, but the charger must be used for lithium batteries. All other devices remain unchanged. (Lithium batteries are expensive now, but this is the future direction of electric vehicle development. I believe the price of lithium batteries will definitely drop to a level acceptable to consumers in the future)
48 V electric vehicles, the original ones are made of polymer. The 48v10a lithium battery is fully charged at 54.5v, and the lithium iron phosphate battery with 16 strings of 51.2v10a is fully charged at 58.4v. Will there be a power surge?
Your problem will definitely be overvoltage, and the battery will be charged or not fully charged, and the battery life will be reduced.
It is recommended to use 15 strings of lithium iron phosph batteriesate of 10 Ah, with a nominal voltage of 48 V, a discharge cut-off voltage of 34.5 V and a fully charged voltage of 15 strings of 54.75 V. .
The above is for your reference. I hope you find dianchizhidu's answer helpful.