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Many users worry about this question: as a product combining electronics and mechanics, what if a smart lock runs out of power?Actually, such worries are unnecessary. Relevant standards stipulate that smart locks must be equipped with emergency unlocking methods.

So, what are the common emergency unlocking methods for smart locks nowadays?

Emergency Mechanical Keys 

This is currently the most common emergency unlocking method for smart locks, and almost all smart locks come with this function. When a smart lock runs out of power or its electronic components malfunction, users can simply take out the mechanical key to unlock the door.

Some users may run into this problem: smart locks are so convenient that they get out of the habit of carrying keys with them when going out.

The solution to this problem is quite simple. We recommend that users keep a set of emergency mechanical keys in their everyday bag or car for emergencies. Even if you don't have the mechanical key on hand, there's no need to worry about being locked out due to a dead battery — because all modern smart locks are equipped with an emergency charging port.

Emergency Charging Function

Nowadays, the emergency charging function has become a standard feature of smart locks, and basically every model comes with it. Generally, the emergency charging port of a smart lock is located at the bottom of the front panel. When the smart lock runs out of power, users can use a power bank and a mobile phone data cable to charge the lock for emergency use — usually, it only takes a few minutes to unlock the door and get back home.

For older models of smart locks, some may use a 9V battery for emergency charging. If you are using this type of traditional smart lock, you can buy a 9V battery at a nearby supermarket to unlock the door in an emergency.

Emergency Mechanical Code

Besides the two common emergency unlocking methods mentioned above, some smart locks currently use a mechanical code as an emergency unlocking option. Although such smart locks are not widely available, they are actually very practical for users. On the one hand, with this function, there is no need to carry keys when going out. On the other hand, this function is extremely easy to use, delivering an experience no different from that of an electronic code.

If you are not fond of using a mechanical code, these smart locks are also equipped with an emergency charging port for emergency power supply, enabling you to unlock the door in an emergency.

Other Emergency Unlocking Methods

The three methods mentioned above are by far the most common emergency unlocking options for smart locks, but there are also some less mainstream alternatives:

1. Self-generating Emergency Unlocking

Some smart lock products on the market are equipped with a self-generating function, with a generator built into the handle. When the battery runs out, users only need to toggle the power generation switch and shake the handle a few times to generate electricity for the lock, thus enabling emergency unlocking.

2. Reverse Charging Emergency Unlocking

Some manufacturers have also applied reverse charging technology — also known as wireless charging, a feature previously exclusive to high-end mobile phones — to smart locks. Simply place a mobile phone with reverse charging capability near the lock to supply power, and then you can unlock the door in an emergency.