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According to the small editor, many consumers go to the place where they sell electric vehicle batteries and see too many battery brands, models and models. They are both lead-acid and lithium-ion batteries. They don't know which battery to choose?

So what is the difference between lead-acid battery and lithium battery? The editor summarized several differences between lithium battery and lead-acid battery, hoping to provide reference for consumers:

1. Durability: lead-acid batteries generally have a deep charge and deep discharge of less than 400 times, have memory, and have a service life of about two years. If the maintenance-free lead-acid battery is used, it should be noted that the water loss of the battery is small, and distilled water is not required in use. Lithium battery has strong durability, slow consumption, more than 500 times of charging and discharging, and no memory, and its general life is 4-5 years. In terms of durability, its battery has good shock resistance. The fully charged battery is safe and fixed. It vibrates for 1 hour with an amplitude of 4 mm and a frequency of 16.7 Hz. There is no leakage, no expansion and rupture of the battery, and the open-circuit voltage is normal; Good overcharging resistance, 25 ℃, fully charged battery 0.1CA charge for 48 hours, no leakage, no expansion and rupture of the battery, normal open-circuit voltage, capacity maintenance rate above 95%; Good resistance to large current, fully charged battery 2CA discharge for 5 minutes or 10CA discharge for 5 seconds, no conductive part fusing, no appearance deformation.

2. In terms of volume and quality: generally, the weight of lead-acid battery pack is 16-30 kg, which is relatively large; The lithium battery is generally 2.5-3 kg and relatively small, so it is light to ride and convenient to carry. In terms of quality, it is difficult to determine which is better or worse. Consumers can buy high-quality brand batteries produced by regular manufacturers according to their own needs.

3. In terms of price and warranty period: at present, the mainstream battery in the market is 48V. If it is replaced, the lead-acid battery is about 450 yuan, and the warranty period is 1 year; Lithium batteries are relatively expensive, requiring about 1000 yuan, but the warranty period is two years.

4. Driving kilometers: The same 48V battery, when fully charged, both lead-acid battery and lithium battery electric vehicles can drive 30-40 kilometers. The speed mainly depends on the size of the motor used.

5. Battery capacity: lead-acid battery capacity is about 20 A; The capacity of lithium battery is 8-10A.

6. Environmental protection: After the State issued the "Entry Conditions for the Lead Battery Industry" in 2012, the lead acid industry has been restructured and integrated, and most manufacturers have adopted internalized cadmium and arsenic free green production, which is more environmentally friendly and energy-saving. Only in the recycling process, if the method is improper, it may cause pollution; Lithium batteries are relatively more green and environmentally friendly in terms of production and recycling.

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