How can I buy the best battery?

Date:2021-06-11
Summary:

Many people in our country are not familiar with alkali […]

Many people in our country are not familiar with alkaline batteries, but they have begun to occupy the market at an astonishing speed. Its main advantage is the durable power, which is generally seven times that of ordinary batteries. In addition, the initial recovery time is short, which is most suitable for camera flashes. The output is stable and does not leak liquid. Therefore, some advanced electronic products such as BP machines, remote controls, electronic cameras, etc. require the use of alkaline batteries. There is also a little secret: alkaline batteries are generally marked with do not recharge (not recharge), which is for safety reasons. In addition, alkaline batteries that are "depleted" can recover a certain amount of energy after being placed for a period of time, so intermittent use of alkaline batteries can have longer working hours. Alkaline batteries can be identified by seeing whether they are printed with the words ALKALINE or "alkaline batteries" in Chinese.
The capacity of alkaline batteries is higher than that of carbon batteries. The reason is that the manganese dioxide used as the cathode has higher purity and density, and the internal parts (such as electrodes) are smaller in volume, which also frees up space, which helps increase the capacity. The capacity is 3 to 5 times more than that of carbon batteries. However, the capacity of alkaline batteries will decrease with the increase of output current. For example, the same battery can have a capacity of 3000mAh at low output current, but when used in a load of 1A current, the capacity will only be 700mAh, which is less than 1/4 of the original.