While there's a lot to love about the Yale Assure Lock 2, its short battery life is undoubtedly one of its weak points. When it's connected to a Wi-Fi network, you'll need to replace its batteries ...

Depending on which Yale Assure Lock 2 model you own, you could see anywhere from three to 12 months of battery life. That’s a shocking range — and if you’re not prepared to change batteries ...