Battery pack service life mark

Battery Pack Lifespan: Due to the consistency issues of battery cells, the lifespan of the battery pack is determined by the worst-performing cell. For NMC packs, this means the cycle life is reduced by 80%, resulting in 1200–1600 cycles. For LFP packs, the reduced cycle life is approximately 3200 cycles.

For LFP packs, the reduced cycle life is approximately 3200 cycles. (The actual SOC range used is typically 5%–95%, which helps extend cycle life. However, real-world conditions, such as fast charging, low-temperature charging, or high-temperature use, can shorten lifespan.

Only considering battery design life or the manufacturer's warranty often results in batteries being set up and then ignored for years without preventive maintenance or testing throughout their life cycle.

In summary, while NMC batteries provide higher energy density, LFP batteries excel in cycle life and durability, making them ideal for applications requiring longer operational lifespans. How many cycles can a retired car LFP or NCM battery perform after its initial capacity degrades to below 80%?

If the capacity of the battery pack decays quickly after using fast charging for a period of time, it means that there is a problem with the battery pack and it needs to be checked by after-sales service as soon as possible.

For instance, if a battery experiences a 4% capacity decay after 300 cycles, reaching a 4% irreversible capacity loss during storage would likely result in the loss of approximately 300 cycles of lifespan (typically, lifespan termination is when capacity decays to 80% of the initial capacity).