Battery Guard is an App which can detect battery of access control system. It can manage multi-batteries, push battery status notification to the mobilephone once user enters into Bluetooth range at 5-10meters.

Historical data can be synchronized when connected with device(save data up to 31days). All the data uploaded to cloud service, other user also can get the data by adding same device serial number into App. Besides, data will be never lost, which can be checked anytime and anywhere.

Battery temperature, volt, charge can be reviewed in real-time. In the statistic table, user can check battery SOH, temperature, SOC, CCA, Internal resistance, Ah, volt which is tested by app automatically or manually.