Battery charge versus remaining usable charge
This seems like a silly question, but I know it's actually complicated and may not be something anyone can really answer. That said, is there any way to know how long a set of batteries will last bas...
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I bought one of THESE. I wrapped 5 loops of 12AWG stranded wire through it to make it a 0-20A meter. I just have to divide the reading by 5.
I plan to 3D print a case for it and power it with a 9V battery.
I compared it to a calibrated amp meter and determined it's 0.4A low at 15A. I'll accept that for a $20 meter.
I plan to 3D print a case for it and power it with a 9V battery.
I compared it to a calibrated amp meter and determined it's 0.4A low at 15A. I'll accept that for a $20 meter.
