To test an eBike battery with a multimeter, set the meter to DC voltage, place the black lead in COM and the red lead in the V/Ω jack, then measure across the battery's accessible positive and...
This 48V battery voltage chart shows the approximate charge levels of a typical 13S lithium-ion eBike battery, which reaches about 54.6V when fully charged. As the battery discharges, its voltage falls. The percentages below are based...