Choose Lithium Batteries Or Lead-acid Batteries For Electric Bicycles?

Electric bicycles, because they are faster than ordinary bicycles, have a large volume advantage compared with cars, and have an increasing advantage in short-distance driving.

What do you care about most when buying an electric bicycle?

Exterior? Well, it must look cool!

More practical:

Choose the right mileage according to your specific situation, the battery is best durable and affordable. The choice of battery is undoubtedly the most important one. The batteries commonly used for electric bicycles on the market are mainly lithium batteries and lead-acid batteries.

Below we will introduce the difference between the two commonly used batteries for electric bicycles. You will not go wrong if you buy according to your needs~

Voltage

Generally speaking, the higher the charge and discharge voltage of the battery, the faster the electric bicycle will run, but it may not run far enough.

Volume specific energy density

It is the capacity of the battery per unit volume, which means that the capacity of the lithium battery is larger for the battery of the same volume.

Weight specific energy density

Similar to the volume ratio energy density, it represents the capacity of the battery per unit weight, that is, the capacity of the lithium battery is larger for the battery of the same weight.

Operating temperature

There is no difference in the applicable temperature of the two batteries. If the temperature drops, the reaction rate of the electrode also drops, so the mileage of an electric bicycle generally decreases in winter. Too high temperature will destroy the chemical balance in the battery and cause side reactions, so the battery is not suitable for working at too high temperature.

Cycle life

That is, the number of charging and discharging times, lithium batteries are generally more than 1000 times, while lead-acid batteries are only 400 to 600 times. Lithium batteries won the game for battery life.

Self-discharge

That is how long the battery can be stored when not in use. The lithium battery is 45 months, and the lead-acid battery is 30 months. If the battery is not used for a long time, it must be fully charged before putting it back, which is better for the battery.

Memory effect

Refers to the phenomenon that if the battery is not fully charged and discharged for a long time, it is easy to leave traces in the battery and reduce the battery capacity. Previous nickel-cadmium batteries have a memory effect, while lithium batteries have no memory effect, but be careful not to overcharge or over discharge, which may cause damage to the battery.

Environmental protection

This is very simple. Lead-acid battery lithium contains lead, which is a toxic metal. There is no such problem with lithium in lithium batteries, so lithium batteries are more environmentally friendly.

In summary

Advantages of lithium batteries:

Large capacity per unit volume, light weight, long use time

Advantages of lead-acid batteries:

Mature technology, high security, low price