- What types of batteries are used for watches?
There is a wide range of button cells available for watches. The preferred electrochemical system is silver oxide. The type of battery to be used is listed in the watch's operating instructions. In general, analog watches (hands watches) and simple digital watches all can be powered by low drain batteries.
- What is an intelligent secondary cell?
Intelligent batteries are equipped with an electronic chip which not only supply energy to the devices, but also control its main function. This kind of batteries can show the rest of its capacity, having been cycled times, temperatures and so on. Yet currently it has not been available on market, in future they will play a major role-especially being used in portable videos, cordless telephones, mobile phones and notebooks.
- Can 1.2V rechargeable batteries replace 1.5V alkaline manganese batteries?
The alkaline manganese battery discharges over the voltage range 1.5V and 0.9V,whereas rechargeable portable batteries discharge at a virtually constant voltage of 0.2V/cell. This voltage level is roughly equivalent to that of the average discharging voltage of an alkaline manganese battery. Therefore, exchanging a rechargeable, portable battery for an alkaline-manganese battery or vice versa should never be a problem.