In the 1890s, electric bicycles were documented within various U.S. patents. For example, on 31 December 1895, Ogden Bolton Jr. was granted U.S. Patent 552,271 for a battery-powered bicycle with "6-pole brush-and-commutator direct current (DC) hub motor mounted in the rear wheel". There were no gears and the motor could draw up to 100 amperes (A) from a 10-volt battery.[5]
Running Errands, Getting Groceries, Replacing the mini-van: An electric cargo bicycle is a new breed of vehicle, half bicycle, half electric vehicle. The Mundo Cargo Utility Bicycle rides like a regular bike and gives you the capacity to haul at least 6 large bags of groceries. You can then save money, conserve resources, stay healthy, change your mobility, and transform your world.
Designed for urban or suburban commutes, the A2B Octave (right picture) offers lightweight aluminum construction with full suspension. Add in its comfortable,oversized seat and you have a powerful ride that's easy to handle. When you don't feel like pedaling, the A2B offers unassisted power on demand for up to 20 miles at a cruising speed of 20mph. Plus, the A2B can be easily upgraded to double its range to 40 miles with the addition of a secondary battery pack and increase its carrying capacity with the addition of baskets and rear carrier bags.

E-bikes mostly use motors and battery options from a few major suppliers: Bosch, Yamaha, Shimano, and Brose. A few other brands exist, but are less reliable or powerful. Some, like the Yamaha system, have more torque and others are quieter. But generally all four make good options. Look for motor output (in watts) which will give you an idea of total power. But watt hours (Wh) is perhaps a better figure to use—it takes into account battery output and life to give a truer reflection of power.