To be honest, if a 48V 2000W motor is directly powered by 72V, without good heat dissipation measures, the coil will burn out quickly.
It is said that the current of a 72V2000W motor should be around 27A, and the starting current will be larger. Generally, it is 4 to 7 times, and no more than 10 times at most. If your starting current is only 70A, that's a bit small. It can reach around 100A, which should ensure safety.
Actually, the most important thing is the maximum continuous current, which should be above 25A, otherwise there will be a problem with your motor (the rated power is not enough)
Is the electric motorcycle heavier on the Piaoqi or the Willow Fire?
If we talk about the Qiusi in the picture instead of other Shenma models, the weight of the 60V lead double electric vehicle is about 165 kilograms, and the weight of the 72V lead -The double acid electric vehicle weighs approx.ron 165 kg. The weight of the electric vehicle is approximately 180 kilograms. ?The weight of the lithium battery version varies slightly depending on the battery type and capacity, generally around 140-150 kg.
If you ask about the oil hussar, it's not clear. Generally speaking, it is lighter than the electric version.
With the same configuration, the qins is of course heavier.
Generally, a 72V dual lead-acid battery horse weighs about 180kg.
The weight of the soft-packaged 72V105AH ternary lithium battery is about 150 kg.
Lead-acid wisp cannot hold more than 72V dual-battery batteries.
For lithium batteries, the weight below 72V exceeds that of lead-acid acid and requires at least 70 Ah batteries (three yuan in soft packs).
Just talking about the empty cart without the three main parts, the Qiusi is already beautifulmuch heavier than the will-o’-the-wisp~~~