Dyson v11 outsize User Manual page 5

Charging your machine
It's important to fully charge your new machine
before using it for the first time, and after
every clean. This is because the battery and
monitoring system's algorithm 'learns' over
time, and fully charging your machine helps
it to more accurately calculate and display
remaining run time.
Connect to charger either directly or in the dock.
The blue LEDs on either side of the battery will flash during charging.
When the battery is fully charged, both LEDs will light for 5 seconds.
Your battery is fully charged when the display shows 100%.
Your machine won't operate if the ambient temperature is below
10°C (50°F). This is designed to protect both the motor and battery.
Changing your click-in battery
Where you have additional batteries,
we recommend that you alternate the
batteries to maintain even performance.
4.5hrs
To remove a battery
Hold your hand under the battery
to support it.
Press the red battery release button
and slide the battery off the handle.
Place the battery on charge.
5
clik clik
To install a battery
Slide the battery onto the handle
until it clicks securely in place.