Articles on: TMD Chain Lock
This article is also available in:

Battery

In this article you can read how long the battery typically lasts and how to know when it is time to charge.


Specifications


  • On average a full battery lasts for 9 months.
  • Charge time from 0 to 100 percent is about 2 hours.
  • You can charge the battery using the included charging cable, which attaches magnetically to the bottom of the lock.


How to know if your battery needs charging


  • When the battery is almost empty (below 20%), the lock button will flash orange three times before turning green when opening.
  • Watch for in-app notifications that recommend charging.


How to know the lock is charging


  • While charging, the button on the lock shows a white rotating light every 3 seconds.
  • When the lock is fully charged, the lights turn off.
  • If the battery is completely empty, you can also charge the lock using a power bank or your phone, as long as it has a USB-C port.

Updated on: 11/02/2026

Was this article helpful?

Share your feedback

Cancel

Thank you!