Its not the wireless that eats battery, its the AXS RD motor. Takes a LOT of power to move your chain around under load. And this is why the AXS post battery lasts eons longer - all its gotta do is open/close a small solenoid valve.
(and why, if your RD battery dies and you're running the post, you just swap batteries between the two, and keep riding.)
Jan. 13, 2022, 9:36 p.m. - Cooper Quinn
Its not the wireless that eats battery, its the AXS RD motor. Takes a LOT of power to move your chain around under load. And this is why the AXS post battery lasts eons longer - all its gotta do is open/close a small solenoid valve. (and why, if your RD battery dies and you're running the post, you just swap batteries between the two, and keep riding.)