Shimano STEPS E8000 Series User Manual page 24

Battery level indicator
You can check the battery level on the cycle computer while riding.
SC-E8000
Display
* The battery level indicator blinks red when remaining
battery capacity falls to this level.
Battery level
81 - 100%
61 - 80%
41 - 60%
21 - 40%
1 - 20%*
0%
22
SC-E6010
Display Battery level
100%
0%