As far as battery life goes, e-bikes get their juice from a rechargeable battery usually located on or integrated into the frame, and many are removable, so you can power up wherever it’s convenient. The length of your ride and how often you use the bike will determine how frequently you have to charge up. “An e-bike battery can last anywhere from 15 to 60 miles depending on the terrain, how much assist you select, and the rider’s weight, among other factors,” says Jonathan Weinert, North American sales and marketing manager for Bosch eBike Systems. “With a dual battery [like the one Bosch has], you can double that range [around 20 to 120 miles], so it’s very feasible to commute for a week without charging.”
We're gald to announce that we finally released the new 1500W BEST system. The new motor has been possible thanks to the manual winding which offer enhanced performance. With a top speed of 60km/h on a standard 27.5" mountain bike, a torque of 150Nm, and a maximum power of 2200W ( with the 48V battery) the BEST 1500 sets new standards for high performance ebikes. It's possible to buy just the motor and controller, and combine them with a custom battery up to 72V for a maximum power of over 2800W. In addition to that, the system has the full connectivity with the Smartbox module: by your smartphone you can change the motor settings to match your daily needs.  Beyond the Limits.
DRIVE MOTOR  The EcoBike is powered by an innovative hub-mounted, brushless permanent magnet motor with a triple planetary gear drive system and proprietary heat resistant materials.  The propulsion system delivers the highest torque and is the quietest in its class.  The drive motor is nominally rated for continuous output at 360 watts (Elegance & Adventure) and 290 watts (Vatavio).
Simplicity powers the Gtech model, available in either a 20-inch “sports” crossbar frame or a 17-inch “city” step-through option. From using a carbon belt drive to a gearless system that allows a computer to adjust speed while pedaling, not only has Gtech streamlined the e-bike process, but they’ve also dropped the price to just north of $1,000. At a range of about 30 miles, this 35-pound bike offers a humble introduction to e-bikes.
As electric bike options continue to expand, more brands are integrating the battery more seamlessly. That makes them look sleeker (and more like a real bike). Batteries are expensive, so make sure there's a good way lock the battery to your bike if you'll be keeping it outside. Overall weight is important. Some battery and motors can add 15 pounds or more to the bike. With assist, you won't feel that much when you're riding, but you will if you have to carry your bike up stairs or lift it onto a bike rack.
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