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Wednesday, July 11, 2018

Review: Dr Kao Travel Charger for Oral B Toothbrush

If you look at the bottom of your Braun electric toothbrush induction charger, you’ll see that it’s only set up for 110V only, rather than the 110/220v setup most other devices get. This is annoying. The current required by these toothbrushes for charging is so low and slow that there’s no reason why the charger couldn’t be driven by a USB power source.

Well, it turns out that a third party manufacturer has made precisely this charger. It takes a microusb input, and the other side is a standard USB A interface, which means you can carry a standard charger on a bike tour or sailing trip and charge it either from mains or from a power bank.

Having tried this on our tour, I have to say that it’s more than satisfactory. It doesn’t charge very quickly. For instance, if you used the toothbrush six times and then charged it overnight using the charger, it wouldn’t charge fully overnight, but close enough that the motor doesn’t slow down. Over a long trip, what you’ll discover is that you reach an equilibrium: the more drained the battery is, the faster it charges, but it’ll never reach a state of a full charge.

If you like using electric toothbrushes, this is a great travel accessory, and you should probably never carry the charger that comes in the box for the toothbrush when traveling. Recommended.

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