How far can I ride on a fully charged Rival eTap AXS derailleur battery? At full charge under normal use, the system will provide one month of riding or 1000+ kilometers (over 620 miles)-about 60 riding hours. Related articles How long do Rival eTap AXS shifter batteries last? How do I know how much battery life is left on my derailleur or shifter battery before I go out for a ride? Are SRAM AXS controller (shifter) batteries replaceable? Rival AXS power meter section Are Rival eTap AXS cranksets compatible with Trek’s BB90 bottom bracket standard?