To Recap; Useful Parameters For Measuring Performance - Competition Electronics Turbo35-GFX User Manual

The contacts used are tin-plated contacts. The contacts can be (and should be) cleaned
using a model train track cleaner for brass tracks such as Rail Zip® made by Pacer Tech.

To Recap...

So, start with the appropriate factory preset. Talk to other racers. Do your research on the
internet. Then, take an old pack and start to modify the settings, and keep track of the
changes in a notebook. Log the charge settings and the results when you discharge. And
don't forget to try it in your car! That's where "the rubber meets the road," so to speak.
Look for a change in your personal performance. Over time, you'll find what works for
you.

Useful Parameters for Measuring Performance

The T35-GFX can make a number of useful measurements that will help you to evaluate
your cells. Here are some of the most useful.
Actual Internal Resistance
The actual internal resistance measurement made by the T35-GFX conforms closely (not
exactly) to the ANSI standard C18.2M-1997 for sealed rechargeable batteries. It is a
measure of the internal resistance of the pack or cells and will correspond to the packs
ability to deliver power. It is presented in units of milliohms (1/1000 of an ohm) and it is
measured during the discharge cycle. A lower number is better. There is no hard and fast
rule concerning at what rate to discharge cells when making this measurement, but in
general, to get the best comparison data, it's a good idea to discharge packs at the same
current rate.
It is good to keep in mind that this measurement will include resistance in the
connections between cells, etc. Make sure that you test packs and cells under similar
conditions. For example, use the same method of connecting to cells for all the packs or
cells you want to compare.
Peak Charge Volts
In a general way, a higher peak charge voltage means that it took more volts across the
pack to induce the setpoint current through the pack during charge, for a given charge
rate. This is an indication of the pack's internal resistance and age; higher voltage means
the pack is less desirable.
Discharge Average Volts
Discharge average volts is simply that, the average voltage over the discharge curve,
measured at intervals, from the start of the discharge cycle until cutoff. Of course, a
higher number is better because it means that the cells will deliver a higher average
voltage to the motor. More volts means more power.
Discharge Average Volts at 1V
This parameter is useful in this way; that most people won't care about the average
voltage after the per-cell voltage drops below 1 volt, because the cells are too discharged
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