How do I know when to change the batteries on my eufy C210 Smart Lock?
eufy C210 Smart Lock will emit an audible voice prompt “Battery is low” as a reminder for you to replace the batteries as soon as possible in order for the Smart Lock to continue functioning normally.
If you have any further questions regarding eufy C210 Smart Lock, please contact us for assistance.

How do I know when to change the batteries on my eufy C210 Smart Lock?
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