https://devzone.nordicsemi.com/f/nordic-q-a/77849/reversed-voltage-on-li-ion-connection-p6Hello, I attached an Adafruit li-ion battery to the P6 connector on my NPM1100-EK before I realized that Adafruit has their polarity opposite of the NPM1100&#39;s. The LED on the nPM1100 instantly turned off and hasn&#39;t turned on since. However, the LEDen-USTelligent Community 13Thu, 25 Nov 2021 18:30:28 GMThttps://devzone.nordicsemi.com/thread/340800?ContentTypeID=1Thu, 25 Nov 2021 18:30:28 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2d89129e-a9d6-4d23-aff6-85fb8fdc18fbDom O<p>I made exactly the same mistake&nbsp;using the P6 connector - the nPM1100-EK appears to be wired the opposite way around to common battery packs.<br /><br />The instantaneous effect, after connecting a battery the *correct* way around, appeared to be that VOUTB followed the VBAT voltage.<br /><br />However&nbsp;my nPM1100-EK&nbsp;seems to have made a miraculous recovery after sitting idle and unconnected for a few days.<br /><br />(although - obviously - it cannot now be &quot;trusted&quot;)<br /><br /></p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/321787?ContentTypeID=1Mon, 26 Jul 2021 11:46:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:dec5e33b-64f5-46e2-80d0-0db0cea778d1Stian R&#248;ed Hafskjold<p>Hi, there are no protection diodes on the DK, so the nPM1100 is most likely broken.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/321629?ContentTypeID=1Sat, 24 Jul 2021 01:43:42 GMT137ad170-7792-4731-bb38-c0d22fbe4515:711cc596-a21d-4aa0-bf98-752c4beacaacMcgTampa<p><img src="https://devzone.nordicsemi.com/resized-image/__size/320x240/__key/communityserver-discussions-components-files/4/IMG_5F00_1657.jpg" alt=" " /></p><div style="clear:both;"></div>