ATTO Standard Flight Battery is a great spare battery to always have on hand. ATTO Standard Flight Battery makes sure that when you are out and about you don’t get stuck without power. For constant power assurance we recommend always having at least one spare ATTO Standard Battery with you to power an average distance of 20km/12.4Miles at 250Wh.Backup power assurance when you most need it Dedicated carrying solutions available with ATTO Backpack or the ATTO Essentials Pouch Guarantees mobility for an additional 20 km/12.4 Miles Alternating between 2 batteries means you never have to stop Average distance power: 20km/12.4Miles Power: 250Wh Dimensions: 29cm x 13cm x 8cm / 11.42” x 5.12” x 3.15” Weight: 1.85 Kg / 4.08 lbsStandard Flight Battery User Manual