How Often Should You Charge an E-Bike Battery? (The 20-80% Lifespan Rule)

Charge an electric bike battery whenever capacity drops below 30% to 40%, rather than waiting for complete depletion to 0%. For daily commuting, maintaining the battery between 20% and 80% State of Charge (SoC) minimizes cathode crystal mechanical stress and doubles useful cycle lifespan from 500 up to 1,000 full equivalents. Reserve 100% full charges for occasions when long-range weekend rides demand maximum battery capacity.