Adapting 24v throttle to 48v system

[Worzel]

Hi, I sourced a replacement thumb throttle for my 48v bike on the basis that it looked identical. Same shape, leds, even wire colours.

But the new one is 24v. Can it be just adapted by putting in a resistor to the battery supply wire?

If do, what ohm resistor would be required?

 

[yooper2001]

What kind of display?
If it shows an actual number... and doesn't read 48v now, adding a resistor won't help, as resistors bring voltage down. The battery voltage is at where it's needed, it's the display that either can or can't show it

If all that is shown is a line of leds....then a small circuit that reduces the voltage by half might work..

On the bright side. The throttle function runs on the 5v line and should work
This is what you asked for

Only I personally would use 10k resistors as it would be safer

 

[OlderGiantFan]

They all operate on a standard 5V signal from the controller. Plug it in and give it a twist, come back and let us know.

 

[E-HP]

Hi, I sourced a replacement thumb throttle for my 48v bike on the basis that it looked identical. Same shape, leds, even wire colours.

But the new one is 24v. Can it be just adapted by putting in a resistor to the battery supply wire?

If do, what ohm resistor would be required?

Can you post a pic. The bike’s battery voltage makes no difference for throttle operation, but if it’s a combination throttle, with battery level voltage display or LED indicators, those will be affected (not accurate).