Longer-lasting power for your Smart Lock We've got real power in store for your Smart Lock - the Nuki Power Pack. This rechargeable battery pack allows you to experience a battery life of up to 12 months, which is up to 100% longer than standard alkaline batteries. No more changing batteries Charge your Nuki Power Pack battery using one of the integrated USB Type-C ports. At night or whenever you want. On the bedside table or directly on the door. Changing batteries is now a thing of the past. Total convenience The Nuki app helps you keep an accurate overview of the Power Pack's charge level. You'll be informed by push notification when the charge level drops below 20%. Simple updating The Nuki Power Pack is compatible with all Nuki Smart Locks and can be easily upgraded to Nuki Smart Lock 1.0 or 2.0.