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Reply To: Buying new batteries + sim card problems

Home › Forums › Mayfly Data Logger › Buying new batteries + sim card problems › Reply To: Buying new batteries + sim card problems

2024-10-10 at 9:54 PM #18687
Shannon Hicks
Moderator

    Everyone has been out of stock of that particular battery for the past 6 months.  As you said, you can use the Adafruit 6600mAh pack (https://www.digikey.com/en/products/detail/adafruit-industries-llc/353/5054549), or you can use the single-cell 2200mAh cell (https://www.digikey.com/en/products/detail/adafruit-industries-llc/1781/5054543).  As long as the pack is 3.7v nominal and has the correct polarization of the red and black wires on the JST-PH connector, it’ll work.  We recommend using packs from Adafruit or Sparkfun because they always have the right polarity.  Using packs from other sources will usually have the connector pins backwards, which will result in catastrophic damage to the Mayfly board if it gets plugged in.