Want to go farther on your FatKat Bike? Simply pack another battery! Ride until your battery expires, and when it does, simply swap it out and double your distance with your second battery. It's as easy as that. The Battery weighs just 7 lbs., so it's not cumbersome to travel with, yet you get to extend your adventure. You get 20 miles per charge, and it's rated for 800 charge cycles - that's 16,000 miles! It features Panasonic cells, comes with a charger and puts you on the cutting edge of green energy technology.