Ebike Battery 48V 13AH has 625Watt power meaning that a 250Watts motor with a 48v ebike battery at 13AH will drive for 2.5 – 3 hours at full throttle without stopping or in other words 40+ miles. There are options for peddling assist installation and motor controller which further increases the driving range of the electric bike.

The DWG22C is heaviest at 4kgs, 60NM and is good for very hilly terrains, cargo bikes and riders over 16st. The second rating to look for is the current rating. My bike is rated for 50A peak, so I found a controller that promised to get to that spec. Three Riding Modes: [Pedal Assist Mode]-The motor will assist you with continuous power as you pedal the bicycle. [Fully Electric Mode]-Just twist the throttle (do not need to pedal). [Manual Mode]-Stepping on the pedal just as the common bike. If you find a loosened spoke, tighten it up as soon as possible. Loosened spokes will break within a couple of weeks.After you measure the output voltage, you do what’s called the “light bulb test” — where you use an incandescent bulb hooked up to the outlet. This is easier in America (or Japan I guess) where the voltage supply is 110V, but it still works with 220V bulbs. In most countries a 1000W motor is not legal to take out on the roads as it is too powerful and would be classed as moped or motorbike, requiring a license to ride. In the UK for example you are only allowed to take an e-bike out on the road which has a 250W motor and a 15.5mph speed limit for road safety.

We recommend the lightweight Aikema 85SXC for road bikes, Bafang SWX02 48V or Bafang BPM for tandems and heavy duty cargo bikes. I did a suite of tests, tried a few techniques recommended on forums and by the lead tech at Luna Cycle, and eventually confirmed my BMS — Battery Management System — was broken and needed to be replaced. You can use the same math for various sizes of batteries to calculate an estimated range under real world conditions. However, you might want to make adjustments to the numbers to better fit your needs, as I explain next.My electric bike is semi-custom. It is built like a custom, but by Luna Cycle in the USA. It has a Bafang (八方电气, “Eight Sides Electrical Appliances”) motor with a 50A controller that Luna Cycle calls their “Ludicrous” controller, though I have it set to operate in 25A mode. Second, test for mechanical failures.Probe around with a multimeter and make sure you read operating voltage in the places where you should.