This kind of hard to say, depends on how you use, up to 100 years
If such batteries run at 3.8V instead of the standard 4.2V (and are kept at a temperature of 25C), they can be expected to last about 100 years. In addition, the 500-week storage retention rate is above 90%
Nickel-manganese-cobalt batteries also have an advantage, that is, the demand for lithium is much lower than lithium iron phosphate and ternary lithium, the former is mainly composed of lithium cobalt and lithium nickel-cobalt, which is easier to get on the market
Nickel-cobalt-manganese batteries can provide more than 500 charge and discharge cycles, and the life is almost equal to the service period of the equipment using this battery.