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Lydahaining5

Lyda Haining is a Show host from Peak Crossing
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It’s awful for the surroundings, but it is a good source of free lithium cells for our tasks. There’s a good tear down online video below of this system together with some facts on why it’s not incredibly exact. There’s a .02 ohm shunt resistor alongside with an op-amp for sensing the existing. All the board is truly executing is measuring the latest and then integrating that over time until the battery voltage drops below a threshold.