You can also review the software version
from the Nest App by checking the technical
specifications of Nest Protect.
BATTERIES
6 AA Energizer® Ultimate Lithium batteries (L91).
These batteries can be purchased from your
local retailer.
Nest Protect will let you know its batteries are
getting low. During Nightly Promise, it’ll glow
yellow. Once you press the Nest button, Nest
Protect will say, “The battery is low. Replace it
soon.”
Nest Protect uses long-life lithium batteries
that are expected to last multiple years
of operation under typical usage. We are
currently testing actual battery performance
and will post results on our support website.
Replacement batteries are available at local
retailers. See nest.com/uk/batteries for
more info.
Because a smoke/CO alarm has a limited life,
it should not be considered as a substitute for
life or property insurance. Like all electronic
equipment, it can wear out or fail.
GENERAL MAINTENANCE
CLEANING YOUR NEST PROTECT
Use a damp cloth to clean your Nest Protect.
Don’t clean it with detergents or solvents
and do not spray air fresheners, hair spray or
other aerosols near it. These chemicals will
damage your smoke alarm and make it non-
operational. Cleaning fluids, polishes, paints,
cooking operations may affect the reliability
of the smoke alarm. Do not disassemble your
Nest Protect or clean inside it. If a continuous
alarm occurs, return for servicing. Do not
get water inside the alarm. Do not paint over
Nest Protect, as paint will seal the vents and
affect its ability to detect smoke and CO.
RESETTING NEST PROTECT
You can reset Nest Protect to erase all your
settings and reset the wireless interconnection
between Nest Protects. You may want to do this
before you move to a new house. After resetting
Nest Protect, it will still detect smoke and
carbon monoxide.
To reset, refer to the complete instructions on
nest.com/uk/protect/reset
SOFTWARE VERSION
Follow these steps to check the Nest Protect
software version:
1. Press and hold the button for at least
10 seconds.
2. You’ll hear Nest Protect play a tone, then it
will announce the software version number.
3. Let go of the button.
4. If you want to keep the current settings,
press again to cancel erasing all settings.
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