Batteries for electric motorcycles are mainly categorized into lead-acid and lithium batteries.

Lithium batteries generally use materials containing lithium as the electrode of the battery, the most negative electrode at this stage are using graphite. In fact, lithium batteries mainly rely on the movement of lithium ions between the positive and negative electrodes to work. In the process of charging and discharging, Li+ is embedded and de-embedded back and forth between the two electrodes: when charging the battery, Li+ is de-embedded from the positive electrode and embedded in the negative electrode through the electrolyte, and the negative electrode is in the state of lithium-rich; the opposite is true in the case of discharging.

Whether it is volume specific energy or weight specific energy, lithium battery is more than 3 times higher than lead-acid battery. Moreover, lithium batteries are smaller, lighter and have a long cycle life. Usually can also remove the battery. Disadvantages: High cost.
Lead-acid battery electrode is mainly made of lead and its oxides, the electrolyte is sulfuric acid solution. Lead-acid battery charge state, the main component of the positive electrode is lead dioxide, the main component of the negative electrode is lead; discharge state, the main component of the positive and negative electrodes are lead sulfate.

Development of the longest, safer performance, the price will be relatively cheap, in the electric motorcycle lead-acid batteries occupy most of the market, the most important thing is that lead-acid batteries recycling prices than lithium batteries; shortcomings are the heavy metals are easy to cause environmental pollution, and lithium batteries than the density of their batteries energy is poor, and the life expectancy is not long, generally one year to two years to follow the need for a set of replacement batteries.
Pay attention to the appearance of the battery. Check the product for deformation, cracks, scratches and signs of liquid leakage. Battery terminals should be clean, free of corrosion, and markings should be clear. Pay attention to the rated capacity labeled on the electric vehicle battery product. The larger the rated capacity labeled on the battery, the longer the battery discharge time. It is best not to buy a battery without a rated label, but pay attention to whether it is specifically for electric vehicles. If there is more than one capacity labeling, the rated capacity should prevail.

There is a part of the electric motorcycle lead-acid replacement batteries, non-professional replacement for lithium batteries, which will cause the charger, battery, wiring mismatch; thus leading to internal malfunctions, which will cause safety hazards, such as electric car fire, explosion and so on.
Overcharging not only has great damage to the battery itself, accelerating the loss of the battery, but also has certain safety risks.
LYBATT suggests that you avoid overcharging the battery, you can choose to disconnect the charger in advance or use a timed power-off function, to ensure that the battery is fully charged at the same time to avoid overcharging.
Li-ion battery electric car should try to avoid being soaked by rain. At present, most all lithium batteries do not support long-term rain immersion. Once the water seeps into the shell, the internal water can not be discharged, will continue to destroy the waterproof layer inside the battery, and at the same time will lead to internal short-circuit of lithium batteries or the failure of the entire battery.
In the matter of choosing a charger, whether it is lithium batteries or lead-acid batteries, should avoid mixed use, especially lithium battery chargers, in the case of choosing the voltage matching should also be done to achieve the current in line with the specifications, as far as possible to use the original matching charger, before purchasing the replacement of the charger, as far as possible to consult a professional.
It is strictly prohibited to reverse the positive and negative poles, the wrong use of the battery is likely to cause a short circuit, the charger or the battery is damaged, the battery will be hot for a long time, and may cause a fire if it is serious.