Leave on the charger or not?No, for lithium-ion batteries like the ones in Sonicares. Lithium-ion batteries lose capacity more quickly if they are charged to 100% or discharged to 0% often and kept at/near those extremes. Keeping it closer to 50% is better. I don't over think it, and just charge it every week or so, overnight.I keep them always on the charger. Is that not what one is supposed to do?AFAIK all the Sonicare models use lithium-ion batteries. Even after (I think) 5 years mine's still good for around 2 weeks of use.
The cheaper Oral-B models use NiMH batteries, and they don't make clear in the product info which models use which, you really have to do some research to figure this out. Family members who have the Oral-B NiMH models have found they can no longer hold a charge for more than a day or two after a few years of use.
Same with laptops, BTW, the batteries lose capacity more quickly if plugged in and left at 100% all the time, and so many have the ability to set a lower charging threshold for mainly AC use.
My practice is to do whatever is the most convenient for me and ignore optimal-battery-practices.
(Including electric toothbrush, laptop, Dyson cordless vac, iPhone, iPad.) My battery replacement interval is acceptable.
With my Oral B 7500 and my cordless Waterpik, I don't keep them on the charger. I put them on the charger when the Oral B drops to one of three bars. Both then will work fine for a week or 10 days.
Statistics: Posted by hudson — Mon Aug 19, 2024 6:37 am