[bluecat]

the measurement is done in volt and translated into %. If 10% akku is displayed, the remaining capacity could be another one. but there is a certain voltage, below that the system stopps. unfortunatly, the tension collapses under high load - while climbing hills or at race speed - but reconstitutes after a short brake, as friano75 mentioned.

as the black display is more accurate than the older white, you can try to avoid the annoying stopp by observing the values.

(i've the same problem, as the road climbes bevor reaching my home)