power nucleo 32 from lipo battery

[DPiór.1]

Hi,

I have STM32 NUCLEO-L432KC Nucleo-32, I would like to power it from a li-pol battery. Is it possible?

[Andrew Neil]

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@Peter BENSCH wrote:

the NUCLEO doesn't care what is connected to the power supply as long as it is within the appropriate range.

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But the range specified in the UM seems a bit conservative ?

Where did the 4.75V minimum come from?

[DPiór.1]

One more question: does the SB9 need to be removed when connecting battery to +5V (and USB not connected)?

In manual, in the table it does not say that it needs to be removed.

However in other place of the manual it says that it must be removed.

Looking at the schematics, I think that when SB9 is ON and USB not connected, then reset will be permanently ON. But I'm not sure about that.