Ebike controller
- Thread starter Parsons
- Start date
both controllers have the same rating, can be the same, just are paired up with different motors.
Most people pair 48V 25A with a 1000W motor, 48V 35A with 1500W motor.
you can waste more battery running a 48V 35A with a 1000W motor which will hit magnetic saturation at about 23A-25A.
Most people pair 48V 25A with a 1000W motor, 48V 35A with 1500W motor.
you can waste more battery running a 48V 35A with a 1000W motor which will hit magnetic saturation at about 23A-25A.
When people mention 1000w and 1500w, it's meaningless. Both those controllers will send the same power to the motor. If you have a choice, get the kit with a KT controller. you'll see that printed on the label or etched into the aluminium nearby. If it's a kit with a KT controller, don't buy it unless it has the LCD too.
Don't forget that you need a 35 amp battery to go with that kit, not a regular ebike one.
For anybody else, I don't recommend those kits. They're cheap for a reason. Most people that fit them soon get fed up with them and switch to a geared motor, which is lighter and easier to ride, and at least looks legal. They give all the power a bicycle needs if you get the right kit, which will cost around £600 with a decent battery.
Don't forget that you need a 35 amp battery to go with that kit, not a regular ebike one.
For anybody else, I don't recommend those kits. They're cheap for a reason. Most people that fit them soon get fed up with them and switch to a geared motor, which is lighter and easier to ride, and at least looks legal. They give all the power a bicycle needs if you get the right kit, which will cost around £600 with a decent battery.
You must've experienced some shockingly bad 1000W motors in your time. IME, most 1000W motors can take significantly more power than that. For example, the Crystalyte H3540 (1000W rated) can take over 5kW before it reaches its saturation point.
For entertainment purposes, here's the very same motor being fed over 44kW:
/thread hijack
/thread hijack
Yes, at 400A. The point was that most 1000W motors can take considerably more than 25A.
I think the guy in the video (LFP) overdid it just a bit though.
Do you have any more details about your battery and motor? I suspect that unless your battery is made from more 'exotic' cells, it's probably already near its limit outputting 35A.
Sorry, you're out of luck. With a hard 40A BMS limit, 35A output is the most you're going to get out of it.
No difference. 35A is 35A.
Is the 1000W or 1500W controller physically larger than your 800W controller? If so, they can probably take a bit more abuse (heat) before they fail, but the power output will be the same.
Is the 1000W or 1500W controller physically larger than your 800W controller? If so, they can probably take a bit more abuse (heat) before they fail, but the power output will be the same.
There may be other benefits to upgrading, depending on the controller, but an increase in power is not one of them.
Current control. each level on the LCD gives a different amount of current (power). Other controllers use speed control, where each level limits a different speed.
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