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Originally Posted by jollyjumper
how could one determine what batteries are needed to feed a specific motor?
with that i mean; how does one know how many amps a setup will pull?
before you have it up and running?
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Well, I would hook up a set of good NiMHs of the voltage I was looking at running just to get a baseline reading. Install the eagletree, and run it like you would at worst-case conditions (lots of stops and starts and heavy acceleration). After a few minutes, you should have enough data on the logger to see what your currents are. I'd probably look for a lipo whose continuous C rating is equal or more than the peak rating on the logger. A little overkill maybe, but the voltage drop will be more stable and the packs will run cooler.
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