Recharge your watch immediately when the battery level is low. Attach the charging cable to charge the watch as shown in the illustration.
Note: When the magnetic charging cable is connected to the power, make sure the conductive substances are not absorbed on it. Otherwise, it may cause a short circuit.
Source: https://manuals.plus/xiaomi/m2109w1-redmi-watch-2-lite-smartwatch-manual#ixzz7We80gBlZ