POWERFUL BATTERY
Developed in partnership with Panasonic, the powerful EnergyPak 250 lithium ion battery is slim enough to stylishly conceal in the frame. The 4A charger guarantees lightning recharge in 3.4 hours, with an 80% charge achieved in just over two hours, and when fully charged, the battery offers 250 watt hours and up to 45 miles* (72 km).