Do you need a dynamometer or merely a simple multimeter and a resistive load under which to test?
Hook it up to your house and thus The Grid.
“Do you need a dynamometer or merely a simple multimeter and a resistive load under which to test?”
They could probably fake that test...best to test in exactly the way that counts.
Do you need a dynamometer or merely a simple multimeter and a resistive load under which to test?
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That’s an excellent question. If I’m buying a used ICE vehicle, I at least have some idea of the tests that need to be done to check it out. What exactly is the test protocol for verifying that an EV battery is ok? I think the only really accurate test would be to charge it up and drive it until the battery is depleted....Good luck on getting that out of the prospective seller...
This is a great question. However, those will only give you a partial answer to the condition of the battery.
These tests would not indicate the battery's capacity. I think a load test over time is needed for that. You'd put the battery under normal working load and measure the time until full discharge (~20% remaining).
From that you can do the math to determine if the battery's Amp Hours are somewhere near its published rating.
I have almost 900 miles on my e-bike since new this Spring. I am already seeing a degradation in the range per charge. It charges to full voltage.