Man down...

 


Lithium is down after about 5 and a half days. This is the AZDelivery board with 70K potential divider, measuring every 60s.

Ladybird (Firebeetle with 1M potential divider) isnt far behind.

Wago (same as Lithium but measuring every 240s) is still on 3.78v after 8 or so days.

These are all on a 500maH cell.

conclusion so far:
The Difference made by moving from a AZDelivery board and lower resister values doesn't make a huge deal of difference (half a day on about 5/6)

The difference between measuring every 60s and every 240s is huge (not yet concluded)

I will let this finish, then re-measure lithium and ladybird on a 240s schedule to see how they fare.

edit:
Ladybird is also down now, so the Firebeetle didn't really make a notable difference (nor did the higher resisters in the voltage measurement hack). We got an extra 5 hours on top of 5.5 days.

It will be interesting to see if in a more sleepy (ie, every 240s) configuration the famed low power consumption of the Firebeetle while sleeping makes any difference, or if the brief waking times dwarf the sleeping power. This will have to start next week, since I am away this week and doing all this remotely, and I didnt think to put them on a smart plug to recharge remotely...




Wago is still going strong though, measuring at 240s


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