Look at the sensor panel Stopanik Mobile App or website gps.stopanik.com Saka Battery is the level of Saka battery capacity (120mAh).
100% = Full
16% = The battery is almost empty
100% -> 83% -> 66% ->50% -> 33% -> 16%
When the battery level is at 66%, Saka will call you many times to remind you that the device battery is low power. In this case Saka running use 120mAh battery backup. Then there is the PowerCut which you can see on the sensor panel: gps.stopanik.com
Alarm - PowerCut
This PowerCut besides battery voltage is low, it shows there are some situations where:
1) SAKA has been revoked.
2) The battery / positive wire / negative wire of the battery has been removed.
3) The positive wire (Saka harness wire) has been cut/removed.