Battery with different models(especially different sizes), the higher capacity to provide the longer use. Cast volume and weight factors, the higher capacity the better it is.
However, the same battery type and the same nominal capacity(for example, 600mAh), with the different capacity when measured. Such as one battery is 660mAh, another is 605mAh, does it is correctly thath the 660mAh one is better than the 605mAh ?
The actual situation may be the high capacity electrode materials increasing the initial capacity of more things, and a reduction of electrode used in the stability of things, the result is scores of recycling, the batteries of high capacity rapid capacity failure, while the capacity low battery is still strong. Many domestic manufacturers of batteries are often as such a way as to obtain high-capacity battery. And users was really get a bad mess after six months of standby time.
Civil those AA Ni-MH batteries(battery is on the 5th), the general is 1400mAh, but some batteries also marked ultra-high capacity (1600mAh), the reason is as well.
Enhance the capacity of the cost is the expense of cycle life, battery manufacturers are not modified material article from top to bottom, it is impossible to truly “improve” the battery capacity.
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