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The magical #10 copper wire Ammeter
Number 10 solid copper wire has some very magical characteristics:
1> The diameter of #10 copper wire is 0.100"
2> 1.0 foot of #10 copper wire has a resistance of 0.001 ohms.
3> If you connect your cell using #10 copper wire and if you measure across a 1.0 foot portion of the wire, with your $3.95 multimeter on the milli-Volt range, you will measure dc Amps directly in milli-Volts.
(You place the red lead of your multimeter towards the + and place the black lead 1.0 feet down the wire towards -.)
IOW if your multimeter measures 10 milli-volts there are 10 Amps going through the wire.
If your multimeter measures 7.5 milli-Volts, there are 7.5 Amps, etc.
Isn't a 65 cent of #10 copper wire a magical measuring device?
Don't guess Amps, use a piece of wire and measure your cell current with it.
BoyntonStu
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