Once the lead-acid battery electric vehicle is overcharged, it will increase the probability of explosion. At present, the lead-acid batteries on the market do not do any "overcharge protection", which makes the lead-acid batteries in the charging, especially at the end of the charge, extremely dangerous.

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Lithium batteries can circumvent this problem. For example, the BMS battery management system can provide full protection for the battery. The functions include: charge / discharge high and low temperature protection; single cell overcharge / overdischarge voltage protection; charge / discharge overcurrent protection; cell balancing; short circuit protection; charging reminder, etc. One is to try to extend the life of the battery, and the other is to ensure safety.

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Discharge

In terms of charge and discharge, lithium batteries are more durable than lead-acid batteries. When used at room temperature, lithium batteries can be continuously charged for 48 hours without accidents such as battery expansion, leakage, and rupture. The capacity remains above 95%. And under the special charger, you can charge and discharge quickly. Deep charge and deep discharge more than 500 times, and there is no memory, the general life span is basically about 4 to 5 years.

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Service life

At present, the service life of lead-acid batteries is about 2 years, and the cycle charge and discharge are generally within 300 times, while the cycle charge and discharge of lithium batteries are more than 500 times, and the general life is more than 3 years.

From a comparison point of view, lead-acid batteries and lithium batteries are indistinguishable, users who are concerned about price and practicality can choose lead-acid batteries, and those who pay attention to battery operability can choose lithium-ion batteries for electric vehicles with better performance. However, when using lithium batteries, the safety of the battery is the top priority, so remind everyone to choose lithium batteries not to be greedy for cheap, and must choose lithium batteries of regular large brands. This kind of lithium battery will be strictly tested before going on sale, and its safety is relatively high.

Lead-acid batteries and lithium batteries are common batteries used in our electric vehicles, and they have their own lengths. All in all, the choice between lithium and lead-acid electric vehicles depends on their own budget and demand.

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