Ni-MH battery and lithium are some differences

4, nickel-cadmium battery memory effect (memory effect) DELL Laptop Battery HP Laptop Battery When the nickel-cadmium batteries to repeat after a few remained at a low discharge capacity charge, if to do a large amount of discharge the battery will not work, this situation we call "memory effect." Memory effect of nickel-cadmium batteries may be the most easily misunderstood the issue. Discharge termination voltage is set higher video recorder, with the use of the voltage change is low, the surface may seem as lower, but the low discharge voltage can be from 1 to 2 times the total discharge of the solution to this phenomenon. Proposed a ten discharge after charging to prevent memory effect. Ni-MH battery and lithium are some differences: First, the weight of To each unit battery voltage of view, nickel hydrogen and nickel-cadmium is 1.2V, while the lithium indeed 3.6V, lithium battery voltage is 3 times the other two. And the weight of the same type of lithium batteries and nickel-cadmium batteries is almost equal, while heavier than Ni-Ni-MH battery. Known, the weight of each different battery itself, but because of 3.6V Li-ion battery with high voltage, in the case of the output voltage is equal to the number of individual battery combination can reduce the third Er Shi forming the battery weight and size after the reduction.
Dell INSPIRON 6000 Battery IBM THINKPAD T42 Battery
Dell Latitude D610 Battery SONY VGP-BPS2 Battery
Second, memory effect Ni-MH batteries and nickel-cadmium batteries have the same memory effect. Therefore, the regular discharge management is also required. This periodic discharge management are fuzzy state is dealing with, or even incorrect knowledge of some of the conduct discharge (discharge or use a few times each time after the discharge is due to companies vary) This cumbersome discharge management when using NiMH batteries can not be avoided. In terms of relative lithium because no memory effect, very convenient and simple in use. It is completely without regard to the number of residual voltage, can be directly charged, charging time can be reduced naturally. Third, self-discharge rate
APPLE A1078 Battery APPLE M8403 Battery
Acer LC.BTP01.013 battery Acer ASPIRE 1300 battery Nickel-cadmium batteries for 15 to 30% (month). Ni-MH battery for 25 ~ 35% (month), lithium 2 to 5% (month). More self-discharge NiMH batteries was the largest, and lithium specialties compared with the other two types of battery discharge rate is very low.

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