Why does it take literally days for an electronic toothbrush to reach full charge but a device with larger battery can become fully charged in a few hours
In: Engineering
One way it could be, but probably is not is that the wattage if the charger is very very low, as this lengthens the life of the battery and they will be able to make it bigger as there won’t need to be as big of a barrier between the positive and negative sides of the battery. The way batteries work is that they almost use the electricity to turn a wheel that takes a ion from one side to another. Then when you use it, those ions go back to the other side and turn that wheel powering your device. As people want higher and higher speeds of charging, producers increase the wattage of the charger. this means they have to make the space that is solid in between both the sides of the battery even bigger to not cause problems when charging.
Please let me know if anything I said was wrong so I can correct it
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