The first thing that needs to be made clear is that for the service life of the power battery of a new energy vehicle, it is generally not measured by time, but by the number of cycles. Since it is a cycle, there must be different starting charging points and termination of charging at the point of charge. If it is a deep charging and discharging, i.e. 0-100% cycle, at this point an experimental data will be obtained. Generally speaking, lithium iron phosphate batteries can cycle about 2000 times, while the current lithium ternary batteries can generally cycle about 1400 times.
Of course, the battery cycle life is also directly related to the temperature at which the battery operates, and the number of cycles used when the battery operates at 35 degrees is significantly higher than the number of cycles in 55-degree conditions.
At the same time, different depths of discharge during different cycles of charging also have a very significant impact on the cycle life of the battery. 0%-50% cycle mode, the battery life can be more than 3,000 times, while the depth cycle, only less than 900 times after the decay to less than 50%.
It should be noted here that state law requires mandatory recycling when the battery capacity decays to below 80%, requiring gradient reuse.
Of course, in the case of deep charging and discharging, the range will be longer, just for the battery decay will be faster. At the same time, the usual habits of car use also has a great impact on the service life of the power battery.
1. Do not always perform fast charging, but a combination of fast and slow charging;
2. Don't often let the power battery discharge with high current: avoid frequent rapid acceleration and hard braking, etc;
3. Periodic recharging is also required when not in use for long periods of time to avoid deep feeds;
4. Avoid charging and discharging in extremely cold weather;
5. Regularly do the power battery physical examination, basically can be done once a year, to the regular 4S store for maintenance and repair.
Avoid deep charging and discharging, usually pay attention to the maintenance of the power battery, it is best to charge as you go, you can maximize the power battery life.