Electric vehicle 60V20Ah lithium battery and lead-acid battery which cost-effective?

　　1. Lead-acid batteries are more cost-effective. Take Tianeng 60V20Ah battery as an example. Lead-acid batteries cost about 350 yuan (the price of a car dealer not long ago). If lithium battery is used to replace lead-acid battery, it should be at least 1200 yuan, the shelf life of lead-acid battery is 15 months. Based on the batteries I replace at the store, they typically last about two years. The service life of lithium battery is 2~5 years, and the shelf life is 27 months. According to the maximum service life of 5 years, 3.5 sets of lead acid can be replaced at the same price. For the same amount of money, lead-acid batteries last seven years, while lithium-ion batteries last only five. Cost effectiveness is self-evident.

　　2, in terms of maintenance cost, lead-acid battery has won a complete victory again. As long as lead-acid batteries are installed early, there are basically no safety problems. Most importantly, there is no need for late maintenance; But lithium batteries are different. They are afraid of heat, cold, collision and water. A virtue of lithium-ion batteries is not necessarily a virtue. For example, light weight is good, but without changing the model design, too light weight will lead to erratic driving and many potential safety hazards. We used to use the same model of lead-acid and lithium batteries. In fact, the mileage is no different. Waste battery treatment. Every time they sell waste batteries, there is a rush to collect lead-acid batteries; But my lithium batteries are getting no takers. If I do, I will only charge you 10 yuan. I have to say a lot of good things.

　　3. Therefore, lithium batteries still have no advantage in used batteries. What kind of battery do you replace when the trolley runs out of power? Or switch to lithium batteries. Lithium batteries have long service life and light weight. If safety is considered, it is best to use lithium iron instead! Although the cost is higher, the performance is better. However, it should be noted that the weight of the tram was greatly reduced after the replacement. There is also an adaptive process when adjusting the brake. In addition, the lithium charger must be used instead of the original lead-acid charger. Lithium battery should have a protection line, when it is below the protection value, it will not supply power to the trolley, unlike lead-acid battery, which can run slowly for a while when the battery is low.

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