48v 1000w Motor with 60v 20ah battery.

[Insung]

I am planning to build a enduro ebike and wanted to know if the Bafang G62 Standard Wind (8.0 RPM/V) Rear Hub Motor for 190-195mm Fat Bike Dropouts. Terminated with L10 Waterproof Motor Plug can be used with a 60v 20ah battery with the MQCON(Sabvoton) Electric Bicycle Controller Model SVMC7260 without being damaged or ruined. If there is no such motor that ca handle a 60v 20ah battery, then is there a 1500w motor? Also can the MQCON(Sabvoton) Electric Bicycle Controller Model SVMC7260 be programed to have a speed limiter if so how do you do this?

 

[amberwolf]

The motor doesn't handle the battery, the battery has to handle the motor and controller. (the controller does have to be rated for at least the fully charged battery voltage, and preferably significantly more so it has a safety margin, but it's still the battery that has to supply all the power demanded by the load placed on the motor by your riding conditions/etc.

The first thing you should do is determine how much power your bike will need to do the job you need it to do under the conditions you ride in. (hills, wind, road conditions, speed, acceleration, etc) You can use the motor simulator at ebikes.ca to guesstimate the power for various conditions.

Once you know the power necessary, you can pick a motor and controller that will do that job under those conditions. This also lets you get a battery that can supply the necessary current to run those, and be a high enough voltage to give you the speed you need with the motor you choose.

Then you can also use the information from the simulator for Wh/mile or Wh/km to guesstimate total Wh required for the range you need, so you can get a battery with enough capacity.

 

[Insung]

I don't really understand how the simulator works bc I'm only 12 so could you test it for me?

 

[E-HP]

I am planning to build a enduro ebike and wanted to know if the Bafang G62 Standard Wind (8.0 RPM/V) Rear Hub Motor for 190-195mm Fat Bike Dropouts. Terminated with L10 Waterproof Motor Plug can be used with a 60v 20ah battery with the MQCON(Sabvoton) Electric Bicycle Controller Model SVMC7260 without being damaged or ruined. If there is no such motor that ca handle a 60v 20ah battery, then is there a 1500w motor? Also can the MQCON(Sabvoton) Electric Bicycle Controller Model SVMC7260 be programed to have a speed limiter if so how do you do this?

The motor can handle 2000W and the controller is made to provide power for a 2000W motor. But that's no guaranty that you won't melt the motor by riding like a nut, so you have to exercise some self control with any ebike. If you install a temp sensor, that's probably the best insurance against having that happen. It's more about whether the battery is capable of supplying the controller and motor. Can you provide more specs on the battery?

BTW There's no minimum age for using the simulator, and all of the info on how to use it is on the same page, so man up. Probably a good idea to get familiar with it and all of the info on Grin's website, if you plan on building an enduro ebike. The Sabvoton controller actually provide pretty good instructions, as far as Chinese components go, so that's a good place to start for setting limits, etc.

 

[RTLSHIP]

I've never had overheating problems with overvolted brushless motors. It did happen with an old brushed motor- a magnet got loose and brushes worn down quickly. So from 36v to 48 or 48v to 60 is not that much, but your controller must be compatible. A rough guide would be to set it up and feel warmth of motor and controller after test ride.