So I bought a tester… And I’m curious of the best way to use it. Any knowledge I have has a couple of decades of dust on it.
I tore apart a charger and I have this setup:
Yes, I almost started a fire. Let’s ignore that for now…
I have two 5ohm resistors, and I can set it so it drains the battery until it gets to a certain voltage.
When I put a battery on it, it tells me the initial voltage. I then tell it at what voltage it should stop draining.
I have three options with the resistors. Just use one, or use the two in series or in parallel. (So I could have 2.5, 5, or 10 ohms) With just the one resistor it drained the battery at about an amp to start. Which resistance best emulates a competition VEX IQ Robot?
Also, what is the best voltage cutoff? I’m currently thinking I should set the cutoff to 7.2v. I’ve been using 6v for the cutoff and that gives me a good test for total capacity, but I want competition capacity.
Or am I barking up the wrong tree?