BATTERY INDICATOR INSTRUCTIONS:
Three lights are all on: the current power is >70%
Only two lights are on: 70%>current power>40%
Only one light is on: 40% >current power>10%
The last light flashing: the current power is <10%
The first light flashing: 30%>current power
The first light is always on, and the second light is flashing: 60%>current power>30%
The first two lights are always on, and the 3rd light is flashing: 99%>current power>60%
The three lights are always on: the current power is >99%