The electric motorcycle frame is electrified
From the perspective of whether electric vehicles can be registered, the new national standard has clear regulations on the speed, weight, and voltage of electric vehicles. This means that if the 48V electric vehicle is changed to 72V, the speed, weight, and voltage will not meet the conditions.
In addition, although the new national standard divides electric vehicles into three categories: electric bicycles, electric light motorcycles, and electric motorcycles, privately modified electric vehicles will not belong to these three categories, but will be classified as non-standard vehicles, which also means that such modified electric vehicles will not pass the review and therefore cannot be registered. Therefore, from this point of view, a 48V electric vehicle cannot be changed to a 72V one.
2. From the perspective of modification cost, changing a 48V electric vehicle to a 72V one is not just about replacing a battery, as the battery is compatible with the charger, controller, and motor. If the battery voltage increases, then the charger, controller, and motor should also be adjusted accordingly, which also means that the cost of modification will significantly increase and is not cost-effective.
Therefore, from this point of view, a 48V electric vehicle cannot be changed to a 72V one.
3. From the perspective of modification technical requirements, in order to convert a 48V electric vehicle to a 72V electric vehicle, it is necessary for the modifier to have strong theoretical knowledge and technology. Currently, many elderly maintenance technicians have switched careers from the motorcycle and bicycle fields, and they do not have the technical knowledge of modification.
Therefore, modification is relatively difficult, and if forcibly modified, it may accelerate the rate of battery decline.
From this point of view, a 48V electric vehicle cannot be changed to a 72V one.
4. From a safety perspective, if a 48V electric vehicle is to be converted to a 72V one, although the speed has increased, safety cannot be guaranteed.
How do you say that? Because the modified electric vehicle does not fall within the scope of the three guarantees of the electric vehicle manufacturer, and if any problems occur, the user can only be responsible for them.
From the above four points, it can be seen that 48V electric vehicles cannot be changed to 72V.
In fact, for users, if they feel that the speed of electric vehicles is not fast enough, they can consider electric motorcycles or electric light motorcycles, and do not modify them without permission.
Other important precautions
1. Before driving every day, check whether the battery is sufficient, whether the braking performance is good, whether the screws are loose, etc. If there are any faults, they should be repaired and eliminated in a timely manner. Only when the inspection is completed and confirmed that there are no faults can the car be driven;
2. When repairing or replacing the charging fuse in the charging section, the 220V power plug must be unplugged first, and live working is not allowed;
3. Every time you park, you must turn off the power switch, remove the key, turn the gear switch to the neutral position, and pull the handbrake;
4. To repair or replace batteries or appliances, the main power switch must be turned off before operation;
5. When children play in the car, they should remove the key switch to avoid danger;
6. Before driving an electric vehicle, it is necessary to check whether the door is tightly closed;
7. Charging should be carried out in a place that children cannot reach;
8. When a fire is caused by an accident or other reasons, the main power switch should be immediately turned off.
How to replace a 48 volt 20 ampere battery with a 72 volt 20 ampere battery?
The answer is no, 4

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