KT controller with 52V battery

[GaSSoo]

Hi, I'm looking for a new battery and considering a 52V one. I was using a 48V battery with a 48V sine wave 25A KT controller on 750w gear hub motor.

I’ve read that it should work fine, but I want to ask if anyone is using this combo with the LCD8H display.

Does it show the correct voltage on display? Is there any know problems using 48V controller with 52V battery?

 

[docw009]

48V controllers have a low voltage cut off (LVC) around 40V. That's what it says on the image you posted,

This should be about 43V for a 52V controller. If you run the 52V battery too long in a 48V controller, it will trip the battery's separate internal LVC circuit. The batteries are designed to take this, but you don't have to let it happen.

The more advanced KT displays allow you to raise the bike's LVC a couple of volts,. Read your LCD8H setup manual.

 

[GaSSoo]

I was wondering if volt meter on display can show accurate readings for 52V battery. I can raise LVC to 41,5V which is not enough. If displays volt meter works with 52V battery it will be easier for me to watch when voltage drops to 43-44 V.

 

[Chalo]

The voltage (max 60V) won't be a problem. However in my observation, KT controllers can vary by more than half a volt when connected to the same battery. Each one is consistent but not all of them are very accurate.