Overkill Solar 120A 4s 12V BMS, Instruction Manual

Page: 61 / 68

4. The Android app communicates via Bluetooth. So ensure that the bluetooth module is present and
plugged in. Note that you must grant the application access to the device’s location. Android requires
location access to grant the application access to the Bluetooth device. For more information on why
this is, please see the FAQ question ​“My Android device says “Pairing Rejected”. What does that
mean?”​ in ​
Section 5​ .
5. Your BMS should be immediately enumerated in the list of devices found. Click on the device. Wait
momentarily while the app connects to the BMS.
6. The application will display a dialog window that allows the user to set the nominal capacity and the
cycle capacity. In the image below, the user customized the capacity to 280 Ah.
7. The application may display another dialog window, asking, “​ use GPS to test speed? Yes / No​ ”. This
question is not applicable to OverkillSolar BMS (some versions of the BMS from the manufacturer
include GPS, as they are intended to be installed in electric scooters). Simply click ​
No​ .
8. The basic info for your BMS should now be displayed.