Nowadays, more and more consumers go to places where they sell electric vehicle batteries and see that there are too many battery brands, models, and styles. They are both lead-acid and lithium batteries. I don't know which battery to choose?
So what is the difference between lead-acid batteries and lithium batteries? The editor summarizes a few differences between lithium batteries and lead-acid batteries, hoping to provide consumers with reference:
1. Durability: Lead-acid batteries are generally deep-charged and discharged within 400 times, have memory, and have a lifespan of about two years. If you are using a maintenance-free lead-acid battery, you need to pay attention to the low water loss of the battery, and generally do not need to add distilled water during use. Lithium batteries have strong durability, slow consumption, charge and discharge more than 500 times, and have no memory. The general life span is 4-5 years. In terms of durability, the battery has good vibration resistance. The fully charged battery is safe and fixed. It vibrates for 1 hour with an amplitude of 4mm and a frequency of 16.7Hz. There is no leakage, no battery expansion or rupture, and the open-circuit voltage is normal; Good rechargeability, 25 degrees Celsius, fully charged battery 0.1CA for 48 hours, no leakage, no battery expansion or rupture, normal open-circuit voltage, capacity retention rate above 95%; good high current resistance, fully charged state When the battery is discharged at 2CA for 5 minutes or at 10CA for 5 seconds, the non-conductive parts are fused, and there is no appearance deformation.
2. In terms of volume and quality: the general lead-acid battery pack weighs 16-30 kg and has a large volume; lithium batteries are generally 2.5-3 kg and are relatively small in size, so it is light to ride and easy to carry. As far as quality is concerned, it is difficult to define which is better and which is bad. Consumers can purchase good-quality brand batteries produced by regular manufacturers according to their needs.
3. In terms of price and warranty period: the mainstream battery on the market is currently 48 volts. If replaced, the lead-acid battery is about 450 yuan, and the warranty period is 1 year; the price of lithium batteries is relatively expensive, requiring about 1,000 yuan, but the warranty period is Two years.
4. Driving kilometers: the same 48V battery, when fully charged, both lead-acid batteries and lithium battery electric vehicles can travel 30-40 kilometers. The speed mainly depends on the size of the motor used.
5. Battery capacity: lead-acid battery capacity is about 20 amps; lithium battery capacity is 8-10 amps.
6. Environmental protection: After the state promulgated the "Entry Requirements for Lead Storage Battery Industry" in 2012, the lead acid industry has undergone reorganization and integration. Most manufacturers have adopted internally chemically produced cadmium-free and arsenic-free green production, which is more environmentally friendly and energy-saving, only in the recycling process. Among them, improper methods may cause pollution; lithium batteries are relatively greener in terms of production and recycling.
