- There is moisture protection, but not from heavy rain. Compactness. There is an application If the factory password has not been changed in the application, then you can view the battery status in%. If it does not fully charge and does not fully discharge, then the battery is not working properly.
- Probably the biggest drawback is that you CANNOT CHANGE THE PASSWORD IN THE APP, although the possibility is provided. If you change, then the application will no longer connect to the device. Without the application it is not possible to visually understand how good the battery is. For example: After a full charge, it shows 80% and the battery turns off at 40%, which means 1 bank is blazing.