Which Ni-MH battery is better than Ni-Cd battery?

5℃~45℃ is the acceptable charging range; 10℃~25℃ is the best charging range; below 5℃, the charging rate must be less than 0.1C, low temperature is not conducive to the combination of oxygen and hydrogen, high rate charging will cause The internal pressure of the battery increases or decreases abnormally, resulting in leakage of the battery. The high temperature environment will seriously affect the charge acceptance. Nickel-based batteries can be charged at room temperature to get 100% capacity, charging at 45℃, 70%; charging 45% at 60℃. Regarding nickel-cadmium batteries, the normal maintenance is regular deep discharge: uniformly every month (or 30 cycles) ); Nickel-cadmium batteries have a memory effect. Nickel-cadmium batteries are highly toxic to the environment, especially cadmium, and are particularly harmful to humans. Nickel-cadmium batteries do not support high and low temperature fast charging. 2. Ni-MH batteries are less adaptable than nickel-cadmium batteries. They cannot be charged quickly if the temperature is below 10°C; they cannot be charged slowly if the temperature is below 0°C. Regarding nickel-metal hydride batteries, the frequency of exercise is about once every three months to effectively alleviate the memory effect. Because the cycle life of nickel-metal hydride batteries is much lower than that of nickel-cadmium batteries, it is almost impossible to use the method of recondition. Nickel-metal hydride batteries do not Memory effect. Ni-MH batteries do not contain highly toxic substances, and the important components are nickel and rare earths. They have a high recovery value (with residual value), and are less difficult to recover. They can basically be fully recovered and reused and can continue to develop. Nickel-metal hydride batteries are composed of hydrogen ions and metallic nickel, which have 30% more power reserve than nickel-cadmium batteries, and are lighter than nickel-cadmium batteries under the same capacity. In terms of discharge rate, the discharge rate of nickel-metal hydride batteries is higher than that of nickel-cadmium batteries; in terms of service life, under the same conditions, nickel-metal hydride batteries are higher than nickel-cadmium batteries; nickel-hydrogen batteries support high and low temperature fast charging; note: (1 ) In the past, each charge was unnecessary and harmful to the battery, because the service life of the battery was unnecessarily shortened. (2) It is not advisable to use a resistor to connect the positive and negative poles of the battery to discharge, and the current cannot be used. Control, it is easy to over discharge to 0V, and even lead to battery polarity reversal in series battery pack. Statement: Some pictures and content of articles published on this site are from the Internet, if there is any infringement, please contact to delete the previous article: Reasons for the decline of lithium batteries Introduction