Battery Profiling - 4 Wire mode

Hi,
I have a question regarding the battery profiling toolbox and if it is recommended to connect the battery with the 4-wire method to avoid the resistance of the leads.

Thanks in advance

Hi and welcome to the forum,

This greatly depends on the battery internal resistance and the current you are profiling the battery with.
If the battery has ohms in internal resistance, then most likely the resistance in the cables and connections will not impact that much.
If you are in the order of hundreds of milliohm then you should at least consider using 4-wire.

Best regards,
Björn

Ok, thank for your the fast response.

Regards

@bjorn.rosqvist how do you enable 4-wire battery profiling in the Otii 3 interface?

I see it now:

So the expectation is that the Ace needs to be in “Power Box” mode when using the Battery Profiler. Got it.

Yes, correct!

Best regards,
Björn