Best 1500w motors?

[powercircle]

The more voltage one uses the less current one needs to supply for the same power.

In English?

 

[Nealh]

It is in English !!!

Do the maths, these are only nominal figures.
13s/48v x 30a = 1440w.
14s/52v x 27a = 1404w.
15s/56v x 25a = 1400w.
16s/60v x 24a = 1440w.

Hot off the charger.
54.6v x 30a = 1638w.
58.8v x 27a = 1587w.
63v x 25a = 1575w.
67.2v x 24a = 1612w.


All three give much the same power out put, less current = less heat. Less heat = less failure.

 

[powercircle]

It is in English !!!

Do the maths.
48v x 30a = 1440w.
52v x 27.69a = 1440w.
60v x 24a = 1440w.

All three give the same power out put, less current = less heat. Less heat = less failure.

Thanks!

Heat isn't really the issue I started this thread on. I was out when it started raining and the motor experienced a mechanical failure. Power was running to the motor but it wasn't engaging in any motion. The next day it was running but now there's a strange pinging sound coming from the motor when it rotates

 

[scbk]

I'm not sure of the make but I bought the motors from Chinese suppliers. They were about £160 each. I would be happy to spend more if you get what you pay for.

Why use a 52v battery? I have 48v batteries and they work well

Were they off ebay/aliexpress?
How many miles has the 1000w done?
If I'm buying a new battery, I'd rather pay a smidgen more for a few more volts.


The new bike has a cassette (not a freewheel), and 700c, seems there's not many kits that take cassettes. Really hoping to get one in UK stock as otherwise summer will be over by the time it gets here on the slow boat from china.



Found a supplier called Modds, they also advertise on ebay

https://www.moddsebikes.co.uk/

I'm sure it will be the same old generic chinese stuff, but with their stickers on the side

 

[portals]

52V will give you more power as Power=Voltage*Current so you should find you can get a little faster speed from hub however most controllers will still drain same current at 52V as 48V so that means they're a little less efficient at 52V, still I'll take 52V over 48V any day