Pros And Cons Of Lithium ion Batteries vs Lead-acid Batteries

Views: 139     Author: China Lithium Ion Battery Factory     Publish Time: 2021-08-16      Origin:

Pros And Cons Of Lithium ion Batteries vs Lead-acid Batteries

The competition between lithium ion batteries and lead-acid batteries has been in place since the initial launch of the two. With similar applications and features, the two kinds or types continue to have an extended stand-off against each other. 

Yes, according to most people, lithium-ion batteries have emerged victorious in the battle. Nevertheless, they fall short of lead-acid batteries in specific cases. Let us compare and contrast their pros and cons in this article.

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Lithium-ion batteries have a general weight of 72 pounds. On the other hand, the lead-acid batteries are more than 325 pounds in most cases.

The comparison means and implies that the lithium-ion batteries are over four times lighter than the lead-acid ones. The lightweight nature comes in handy as it reduces the overall mass of the vehicle or appliance to a considerable extent.


Lithium-ion batteries are resistant to corrosion and other factors that can lead to their breakdown and failure. Lead-acid batteries are not. 

That is why lead-acid batteries require regular and frequent maintenance for watering and corrosion clean-up. Their discharge limit at 50% of the total charge also needs to be monitored continuously to ensure their long life. All these are unnecessary for the sustenance of lithium ion batteries. Thus, it reduces the time and effort spent behind their upkeep significantly. 

Rate of Self-Discharge

A small amount of chemical substances within any battery reacts even when it is not connected to any electrodes or in use. These internal reactions lead to a loss and reduction of the stored charge inside and lower its capacity gradually. This phenomenon or occurrence is known as self-discharge.

Lead-acid batteries undergo a self-discharge rate of approximately 33% each month while lithium-ion ones, 2-3% per month. It indicates that the latter lasts longer and can proffer the ultimate work performance.

Maximum Usage

Lithium-ion batteries can produce 100% of their capacity at all times, even when they are low on charge. They continue this until they get discharged completely. 

On the other hand, lead-acid batteries cannot work adequately when their maximum charge drops below 50%. In such instances, they start giving poor outputs and may experience failure in extreme cases. 

Time Taken for Charging

On a comparative basis, lithium-ion batteries take a substantially lower time to charge than lead-acid batteries do. While the former takes only two to three hours, the latter requires a minimum of eight to ten hours. 

Cycles of Lifetime

Lifetime cycles refer to the continuous series of charging and discharging that a battery can work with and endure. It signifies the lifespan of the product. The more the number of lifetime cycles, the longer the battery can work.

Lithium-ion batteries can have and proffer more than 5000-lifetime cycles. For lead-acid batteries, the numbers are only around 500 to 700. Thus, it is almost five times less than that of the lithium-ion ones.


All batteries need protection against overcharging and overheating to some extent. It ensures that the products do not end up bulging and create sparks that can result in a small-scale fire.

This protection is exceedingly essential for lithium-ion batteries as they can work at their entire capacity until they get discharged entirely. Otherwise, it is arduous to prevent the associated hazards. Lead-acid batteries require the protective coating but not the magnitude of the lithium-ion ones.

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