I want to stick to the legal limit of 250W for a motor, not just because of the law but also because I want to get the most range I can from any battery I end up using. Aluminum alloy controller shell can protect the inner circuit due to good heat dissipation feature to avoid thermal overloading. The issue is, you shouldn't go plugging a 48V battery pack into a 36V controller box, you can fry the capacitors. The dual volt 36/48v controller looks very much like the excellent KT (Kuenteng) one, it will operate on 36 or 48v without issue including using both alternately.

At fast road cycling speeds on the level you're in a zone where most of the work is against aerodynamic drag which is proportional to the square of speed so that power is proportional to the cube of speed. Yes the RPM is increased but then so is the battery usage - but if you're indeed going at a faster RPM, the mileage should just even out?

A lot of people have said, if in doubt (it's not labelled) unscrew the controller box and if the capacitors are rated at 63V or more then it can tolerate having a 48V battery. Someone will know if what you are proposing is possible, or at least suggest where else you can ask. It's also a way for you to save money on the cost of your cycle and spread the cost over a number of months, through your pay packet. I have never "lost" a battery myself, my last bike was sold with the original battery still working, at 7 years old! I also read that as long as a 250W motor can be kept from overheating, you can push it (simply by using more Volts) to be effectively way more than 250W.

The only Comms is between controller and the display, the software/programming isn't universal between generic brands so one has to stick to the same pairing from the same maker.If you need to cool the battery, but I must admit that in almost 10 years of e-biking I have never noticed much heat from any of the Li-ion batteries I have owned, but naturally, if your battery does get hot and that it is a concern, small holes, low down and maybe a tiny fan (CPU Type), should sort that out easily. A 24ah battery using 3000mah cells would have 8 in parallel so 104 18650 cells, each cell is about 48g so 4. Brushless motor controller can provide steady speed and sensitive control of braking and direction changes. In low power mode PAS 1 or 13% of available current I get 25 miles from a 6ah 36v battery, using the cells discharge current the actual available capacity is nearer 5. Furthermore, if some battery types get warm/hot (not good for any battery type as the answer above suggests), then possibly a small, cheap thermometer might be considered to be installed.

To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. I read that the Chinese sell motors labelled as 250W to stick to UK legal requirements, but they are often way more powerful like 400W! Feedback: Your satisfaction and positive feedback is very important for us, if you have any problems, don't hesitate to contact us. For the avoidance of doubt, you will be responsible for obtaining such type approval, insurance, tax, registration and MOT. A hub motor to doesn't care to a degree doesn't care what it sees voltage wise at less the 60v, though it will depend on the extent of current supplied to it.NOTE—Please check as much as possible to the item picture, model and size carefully before purchasing.