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  • QuestionHow long do the batteries last, and what happens if they run out?

    Asked by mariana.

    • Answer The lock is powered by 4 AA batteries (not included) and typically provides up to 12 months of battery life under normal use. Battery life may vary depending on usage and weather conditions. When the batteries are running low, you'll receive a low-battery alert. If they become completely depleted, you can temporarily power the lock with a USB-C power bank through the emergency power port to unlock the door before replacing the batteries.

      Answered by Anonymous

  • QuestionIs this suitable for an exterior front door in rain, snow, or hot weather?

    Asked by claria.

    • Answer Yes. The B200 is designed for exterior residential doors. It features an IP54 water-resistant rating, operates in temperatures from -22°F to 158°F (-30°C to 70°C), and meets BHMA Grade 3 residential standards, making it suitable for everyday outdoor use in rain, snow, and hot weather.

      Answered by Anonymous

  • QuestionDoes the lever unlock the door from the inside?

    Asked by nicloe.

    • Answer Yes. The interior lever allows you to exit normally from inside the home without using a fingerprint, PIN, or the app. This makes everyday use quick and convenient while still providing secure keyless entry from the outside.

      Answered by Anonymous

  • QuestionHow long do the batteries last, and what happens if they run out?

    Asked by leo.

    • Answer With typical household use, the batteries can last up to 12 months. You'll receive a low-battery reminder before they need replacing. If the batteries are completely drained, simply connect a USB-C power bank to the emergency power port to temporarily power the lock and unlock the door.

      Answered by Anonymous

  • QuestionDoes it lock itself automatically if I forget?

    Asked by wtid.

    • Answer Yes. The B200 supports Auto Lock, which automatically locks the door after a preset delay when the door is properly closed. This helps prevent accidentally leaving your front door unlocked.

      Answered by Anonymous

  • QuestionDo I need to use the app every time I come home?

    Asked by sarah.

    • Answer No. The app is optional for everyday use. You can unlock the door using your registered fingerprint, PIN code, key fob, or the included physical key. The TTLock app is mainly used for setup, user management, and additional settings.

      Answered by Anonymous

  • QuestionCan I install this myself, or should I hire a locksmith?

    Asked by mike.

    • Answer Most homeowners can install it themselves using just a screwdriver. The B200 is designed to fit standard U.S. single-cylinder deadbolt doors and includes installation instructions to help guide the process. If you're replacing an existing deadbolt on a compatible door, professional installation is usually not necessary. If your door has non-standard dimensions or requires modifications, you may want to consult a locksmith.

      Answered by Anonymous

  • QuestionMy front door already has a deadbolt above a separate lever. Can this replace both pieces?

    Asked by nick.

    • Answer Yes. This Handle/Lever Set is designed to replace both the existing deadbolt and the lower lever on most standard front doors. As long as your door uses a standard U.S. deadbolt and lever layout, it should install without requiring new holes in most cases.

      Answered by Anonymous

  • QuestionWould this work for a rental home or Airbnb?

    Asked by asaiya.

    • Answer Yes. The B200 is a practical choice for rental properties and short-term stays. Through the TTLock app, you can create permanent, scheduled, recurring, or one-time PIN codes for guests or service providers. For remote management while you're away, you'll need to add the DESLOC G2 Wi-Fi Gateway (sold separately).

      Answered by Anonymous

  • QuestionIs a lever handle easier to use than a round knob?

    Asked by daisy.

    • Answer Many users find a lever handle easier to operate than a round knob because it requires less grip strength. It's especially convenient when your hands are full with groceries or packages, and it's often a comfortable choice for children, seniors, or anyone who prefers a simple push-down motion. The square lever also gives the lock a clean, modern appearance that pairs well with contemporary front doors.

      Answered by Anonymous