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Reply To: Battery Failing In the middle of the night

Home Forums Mayfly Data Logger Battery Failing In the middle of the night Reply To: Battery Failing In the middle of the night

#15912
Shannon Hicks
Moderator

The data looks to me like the battery voltage dropped in July, someone replaced it with a charged battery on 8/4 and data was continuous, but then on 8/25 someone replaced the battery with the almost-dead one from earlier in the month.  And if you’re using the sample LTE logging sketch like what’s found here: https://github.com/EnviroDIY/ModularSensors/blob/master/examples/DRWI_LTE/DRWI_LTE.ino , you’ll see in line 423 of the code that the station won’t transmit data if the battery voltage is lower than 3.55v.  So your station should still be recording data onto the memory card (down to 3.4v as set in line 419), but won’t transmit unless the battery is above 3.55v.  If you replace the battery with a fully-charged one, then you shouldn’t get gaps in your transmissions.