Lithium battery charge and discharge only 400-600 instances, specifically altered products, but 800 instances. The nickel-metal hydride rechargeable battery can reach extra than seven hundred instances, some good high quality products about 1200 instances charge and discharge, these types of a comparison, the nickel-metal hydride batteries are living for a longer time than lithium batteries. Moreover, the cost of nickel-metal hydride batteries is way reduced compared to lithium batteries. Additionally, strictly talking, lithium batteries have the same memory result, but its memory result is extremely lower, primarily negligible.