Home-brew battery measuring station

[lincpimp]

Seems like pretty valid data could be compiled just by picking a variety of similar rated packs, and running them with an eagle tree in a properly setup rc with a certain test regiment.

Do some testing with a decent pack and the vehicle to get the draw you are looking for, then setup a "course" on a road of hard acceleration and quick hard stops. Repeat for a certain number of those cycles or for a certain time limit, or till the pack hits the lvc. It would be painfully boring, and may take an esc's life, but it would provide good info such as voltage drop, heat, runtimes, and other factors. Battery effect on the other components could also be measured.

Only issue i can see is that you would have to test batts with identical specs to provide a fixed constant for the test. Some variation in driving would exist, but it would provide a type of real world testing.

Having bench equipment would e nice, as it would eliminate some variables, but would also not really recreate the same usage that we put the lipos through.

I have generally chosen my setups due to trial and error, with a temp gun, radar gun, "seat of the pants feel" and your speed calc. Battery choice was limited to what I had at hand, and I ended up with some good numbers that I rely on but i am not sure if they will translate to other packs.

Some sort of testing is vital, as just buying lipos and giving them a try is not really feasible by most, or desirable by the rest of us who can afford it. Always nice to get the right stuff the 1st time around.

I look forward to seeing your results, and i am sure that you can get battery resellers to send you packs, just stick with 2s lipo to keep it cheap.