Running a 36V kit with a 24V controller

troypi

100 µW
Joined
Nov 20, 2017
Messages
8
Hi,

I recently purchased a brushless kit to upgrade my old IZIP ecoride 2 that was using a brushed motor with a 24V battery. The battery is recent and was expensive so my idea was to purchase a brushless kit that would work with 24V, however this is not what I received, instead I got a 36V controller with a min voltage of 31.5V. Therefor it doesn't work with my 24V battery.
The kit was rated at 500W but I have the possibility to set up the max amperage with a LCD display, my idea is to change the 36V controller to a 24V controller (such as https://www.amazon.co.uk/Electric-Brushless-Regenerative-Function-Controller/dp/B01H56INEQ/ref=sr_1_7?ie=UTF8&qid=1511335970&sr=8-7&keywords=24v+brushless+controller) and to limit the amperage to what the 24V controller can sustain but before doing so I have a couple of questions.
- What would happen if I run this "500W 36V" kit with a 24V 11A controller (which makes 264W peak power) ?
- Does the motor would run extremely slow or it would just be a 264W motor that run normally ?

Thanks
 
As an alternative idea you might want ot take a look at this thread: https://endless-sphere.com/forums/viewtopic.php?f=2&t=90369

wturber describes his experience running a 48 Volt system on 36 volt batteries via a boost converter.
Seems to me that you might achieve a similar result with 1200 watt converter.
These can be obtained on EBAY for as little as $15
 
Thanks a lot for the idea. For 15$ i'll give it a try and see how it works.
 
troypi said:
- Does the motor would run extremely slow or it would just be a 264W motor that run normally ?
At full throttle, no load, (off ground) wheel speed is governed by max voltage.

So let's say you got 15mph off-ground speed at 36v, you'd get 10mph at 24v.

24 / 36 = .67
.67 * 15 = 10

you can use the same math to figure out wheel speed at any other voltage.
 
Back
Top