Battery management is a key consideration of e-MTB riding. As a general rule, it’s easier to think of eMTB battery range in terms of elevation rather than distance since climbing requires the most assistance from the motor. When riding in Boost mode, SHIMANO STEPS batteries last approximately 2,000 feet of elevation gain. In Trail mode, it's closer to 3,000 feet, and in Eco mode, the battery can last 4,000 feet or more.
Of course, many factors can impact the range of the battery. Hilly terrain will draw the battery down faster due to the added output required on ascents. Cold weather can also drain the battery quicker (like a cell phone in the middle of winter). A rider's weight can impact the duration of a battery charge, as lighter riders will require less power at the same ascent speed as their heavier counterparts. Keep these variables in mind when planning an eMTB ride.