Forum Replies Created

Viewing 3 posts - 1 through 3 (of 3 total)
  • Author
    Posts
  • January 10, 2021 at 1:10 PM in reply to: 6.4V Lithium iron phosphate battery #15888
    Michael Newman
    Participant

    Thanks! This confirms my suspicion that I burned something up given I achieved the lower power previously.

    Agreed on lifepo4 some care is needed… I got burnt on over some over-discharge issues of the battery! In addition to your point that it can’t be charged by usb, the processor seems to be able to draw/work below ~2.3v (I think datasheet says 1.65v) which is below the safe discharge of the battery, killing the battery. Lessons learned the hard way.

    January 10, 2021 at 11:33 AM in reply to: 6.4V Lithium iron phosphate battery #15886
    Michael Newman
    Participant

    Is the VBAT and JST pin connector the same? I’m noticing around 400uA sleep current when connecting via the pin (I did not have the correct JST plug on my LiPo). Schematic would indicate that the JST and VBAT pin are the same. When powering the unit via the 3v3 pin using a LiFPo4 I observed ~17uA.

    In connecting I did notice I created a short (spark) accidently so the issue could be I damaged something causing the addition power draw :/

    January 10, 2021 at 11:31 AM in reply to: 6.4V Lithium iron phosphate battery #15885
    Michael Newman
    Participant

    Is the VBAT and JST pin connector the same? I’m noticing around 400uA sleep current when connecting via the pin (I did not have the correct JST plug on my LiPo). Schematic would indicate that the JST and VBAT pin are the same. When powering the unit via the 3v3 pin using a LiFPo4 I observed ~17uA.

    In connecting I did notice I created a short (spark) accidently so the issue could be I damaged something causing the addition power draw :/

  • Author
    Posts
Viewing 3 posts - 1 through 3 (of 3 total)