Millet door lock can not use ordinary Nanfu batteries. Buy leak-proof batteries so they don't spoil the locks. It is recommended to use the smart door lock special Nanfu i master battery, more safe.
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Xiaomi Mi Home smart door lock is a smart door lock officially released by Xiaomi on December 5, 2018, which supports 6 unlocking methods such as fingerprint password, and adopts C-level smart lock core configuration, which can be linked with Xiaomi smart devices.
Millet smart lock can use Nanfu battery, because the voltage of Nanfu battery is 1.5V, millet smart lock. You can use dry batteries, but the millet smart lock can not use rechargeable batteries, because the rechargeable battery voltage is relatively low, which will affect the normal use of millet applications, so I think the millet smart lock can use two pairs of batteries.
It can't be used because the four screws on the back cover of the Red Rice system are not universal