Зубные щетки на батарейках
Battery powered
— powered by a replaceable cell (cells) of a standard size — for example, the AA battery.Both disposable batteries and rechargeable batteries (as explained in the relevant section) are self-contained power sources, enabling you to use the toothbrush or irrigator even when power outlets are not readily available. However, this option is relatively uncommon these days for several reasons. Firstly, disposable batteries are typically not included in the package, so using the device incurs additional costs, either for buying disposable cells regularly or investing in rechargeable batteries and a charger. Secondly, for the same capacity, replaceable power supplies are usually bulkier than built-in batteries.
However, this option comes with clear advantages. Firstly, battery-powered brushes/irrigators tend to be more affordable than rechargeable ones. Secondly, when a battery is depleted, you can swiftly replace it with a fresh one, whereas a built-in battery would require charging, which consumes time and necessitates access to an external power source.
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