Discharge Mode; Discharge Power Dissipation Limit; Setting Up A Discharge Cycle - Competition Electronics Turbo35-GFX User Manual

When you change the charge rate during a cycle, the 60 second lockout will be re-
activated to assure that no false peaking results from the changed voltage across the pack
due to a change in charge current.
Viewing the Charge Graph
Figure 14. Typical charge graph.

Discharge Mode

The T35-GFX can discharge individual cells as well as packs of 2 to 8 cells.
The main display for the discharge mode will show you the currently selected setup, the
pack voltage, the discharge rate, the mAHrs drawn from the battery, the elapsed seconds
since the start of the discharge cycle, the number of cells in the pack, the discharge
current setpoint, and the discharge profile currently selected.
Discharge is terminated when the pack voltage reaches the cutoff voltage setpoint.
Factory presets are based on a starting point of 0.9 volts/cell, so that in most cases, you
can simply change the # of cells setpoint and the cutoff voltage will be automatically
adjusted to the correct value. However, the cutoff voltage is independently adjustable for
maximum flexibility.

Discharge Power Dissipation Limit

As with the charge function, the power dissipation of the discharge function is limited to
protect the T35-GFX discharge MOSFETs.
A 7 cell pack will be limited to a maximum of 25 amps discharge rate and an 8 cell pack
will be limited to a maximum of 20 amps discharge rate. However, because pack voltage
decreases during discharge, there is no automatic (dynamically adjusted by the charger)
current limiting in the discharge cycle.

Setting up a discharge cycle

Again we remind you that there are a total of 10 setups storage memories in the T35-
GFX. Only the first 6 are specifically programmed; the rest have generic data which will
almost certainly have to be modified in order to be very useful. You may find that one of
these setups is ideal. You may also find that one of the stored setups is a good starting
point. You can load one of the setups as detailed in "Storing and Saving Setups," below.
Otherwise, you can check and set each parameter.
While the charge cycle is in
process, pressing the MENU button
will toggle back and forth between
the main charge screen and the real-
time charge graph. More will be
said about the graphing feature later
in this document.
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