At a power level of 20% Nuki will notify you via the Nuki app and directly on the Smart Lock via the LED signalization. So there is enough time to replace your batteries of your Smart Lock. In case you are not able to change the batteries in time, the Smart Lock will not be able to receive any commands. However you can still use the knob or your mechanical key.
To replace the batteries, proceed as follows:
The battery compartment is located on the bottom of the Smart Lock. To open it, press the small lever in the arrow direction and take the battery compartment out of the Smart Lock.
Replace the batteries and insert the battery compartment back into the Smart Lock.
Power up your Smart Lock
With the Nuki Power Pack you benefit from an optimal power supply for your Smart Lock and battery life of up to 6 months. The Nuki Power Pack is compatible with every Nuki Smart Lock and can be easily retrofitted for your Nuki Smart Lock. Buy the Nuki Power Pack