Main battery = Up to 6 months. Backup battery = Up to 2 weeks.
Wyze Palm Lock has two batteries, a removable main battery and a fixed backup battery. The main battery is a lithium ion battery with a battery life of up to 6 months, with an average of 10 unlocks per day. This main battery is a removable and rechargeable.
The backup battery is not removable, and has a battery life of up to 2 weeks while the main battery is removed and being charged.