is it possible to use 3.7v 300mah battery to custom nrf52 board which is actually using 3.7v 27mAh

[saiteja]

Hi, i am working on custom nrf52 board which is operating by Li battery of 3.7v 27mAh battery. now the battery is dead i didnt find 27mAh batteries in the market near to me, insted i got 3,7volt 300mAh is it possible to operate with 300mAh battries. this question may be silly but need suggestions.

thank you,

[endnode]

Sure, as long as Voltage and max current drain are the same (or higher when it comes to max current drain from the battery) the capacity doesn't matter.