1. Comparison of weight
Lithium batteries are lighter and have a high capacity density of 192Wh/kg. With the same weight and volume, the energy contained in them is many times that of lead-acid batteries. At present, two-wheeled electric vehicles need a long battery life. Only lithium batteries are the best choice. 

2. Comparison of charging efficiency
The charging efficiency of lithium batteries is higher. Take the ternary 18650 lithium battery as an example, the maximum charging current is generally 0.5C, and take the alliance 72V24Ah lithium battery as an example, the maximum charging current can be 12A. Of course, for the safety and life of the lithium battery Considering that the lithium battery protection board of the alliance limits the maximum charging current, the current recommended maximum charging current is 6A, and the 72V24Ah battery only needs 4 hours to charge
3. Comparison of life expectancy
Lithium batteries have a longer lifespan. Generally, ternary lithium batteries have a cycle time of about 800 times. According to the current general use of electric vehicles, lithium batteries can be used for at least 3 years. The 800 cycles mentioned here does not mean that the battery will be completely scrapped after 800 cycles, but it means that after 800 cycles, its capacity can still reach about 60-70% of the maximum capacity of the new battery. If it is above the user's minimum continuation requirement, it can still be used until the continuation can no longer meet the user's needs.