With the SwitchBot Lock connected to a SwitchBot Hub, we will get a low battery alert when the battery level is lower than 20%. Under this circumstance, a muffled sound and a red indicator light will be coming out of the Lock every time we try to operate it, locking or unlocking. This would be a sign to tell us to change the battery as soon as possible. Otherwise, we will no longer be able to control the Lock when the battery is dead.
Note: we should replace two CR123 3V brand-new batteries.
Recommended batteries Panasonic CR123A 3V
*Please do not use NiMH rechargeable batteries as they are unstable in voltage current and may not notify low power on alert/operate properly, and you may be locked out if you are unable to unlock the door.