How many hours of riding can I get from a fresh set of shifter batteries? February 06, 2019 15:39 About 2 years depending on how much you ride/shift. Related articles What type of batteries do the new SRAM RED and Force eTap AXS™ shift-brake levers require? Are there any auxiliary buttons on the shifters with unassigned functions that can be used to control other wireless components or perform special functions? How do I know if my battery is low? What are the charge levels and how many hours of riding can I expect to get on a full charge? Are eTap™ Blip and Clic button functions digitally customizable? Are RED and Force eTap AXS™ shift levers compatible with Eagle™ AXS™ rear derailleurs?