Calculator
Battery-days check
Enter the battery figure in days from the listing, how many times a day you brush and for how long. The check converts the maker's figure to your routine.
In short
Maker days assume 2 brushes a day of 2 minutes, so total minutes = days x 4. Your days = total minutes ÷ (brushes a day x minutes per brush), rounded down. 14 days is 56 minutes, which is 9 days at 2 x 3 minutes.
Check it
Total run time
56 min
maker days x 4
Your use a day
6 min
Your days
9
rounded down
App connection, higher-intensity modes and an ageing battery can shorten real figures. Type decimals with a point, for example 2.5.
Maker days on other routines
| Maker days | Total minutes | 2 x 2 min | 2 x 3 min | 3 x 2 min |
|---|---|---|---|---|
| 14 | 56 | 14 | 9 | 9 |
| 20 | 80 | 20 | 13 | 13 |
| 30 | 120 | 30 | 20 | 20 |
Many chargers fit the UK bathroom shaver socket (BS 4573) with a two-pin plug. The listing states which charger is in the box.