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Topic starter
Dear Sirs,
I have tried the 3.7V LiPo Battery with 4000mAH to power up the witty pi 4 l3v7 which is not successful at all. I tested all of LiPo battery are in 3.8 and 3.9V status by meters.
I cannot even see the LEDs light up, can anyone here from the technical team help to sort up?
The USB C is working, but in our business we need to power it up with 3.7V battery.
Please let me know how to proceed the replacement or anyway to make it work.
Looking forward to.
Richard
Posted : 20/07/2024 1:25 am
Your battery has reversed polarity. You can see the [+] mark aside the connector, or check the PH2.0 cable included in the package.
BTW, this forum is for technical discussion only. Your request of replacement should not be post here, as stated in forum rules.
Posted : 20/07/2024 11:19 am
Topic starter
Dear Sirs,
Thank you so much, I didn't notice the polarity was reversed. It worked right now, thank you.
Posted : 23/07/2024 12:30 am
Unfortunately there are apparently two 'standards' for the polarity on those connectors and the Raspberry Pi way is in the minority, it seems.
Using the tip of small tweezers you can pry the plastic tab keeping the metal contact parts from slipping back out enough to be able to pull the contacts out and insert them the 'right' way.
Were you lucky and did the board actually survive the maltreatment or is it protected against wrong polarity?
Posted : 23/09/2024 11:29 pm