How to charge a pack – ProgressiveRC 4S Gold FMA Cellpro User Manual
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How to charge a pack
Tip: Because FMA’s cell balancing technology monitors individual cells, you don’t need
to cool a pack before charging it. Go from flying to charging to flying again without wait-
ing. FMA cell-balancing chargers are the only ones that can charge a pack immediately
after discharge without damaging the pack.
1. Connect the charger to a power source and a pack as shown on the previous page.
2. If you want a different charging mode or current:
a. Press and hold the Mode Button. The display will cycle through available charging
modes and currents.
b. Release the Mode Button when the desired charging mode or current is displayed.
Tip: More information about the display —and how to navigate it—is provided on the
next page.
Note: You can change charger modes at any time, whether or not a battery is con-
nected to the charger. However, be careful. If you are charging an A123 pack (in 3.00A
A123 3.60V Mode, of course), you shouldn’t enter the menu (by pressing and holding
the Mode Button). Doing this could put the charger into a LiPo mode, which would over-
charge the pack. If you do change modes when a pack is connected, always make sure
the chemistry shown in the display (LiPo or A123) matches the connected pack.
3. Under normal conditions, the charger will beep at the following times:
n
When pack has been charged to 90% of capacity.
n
When pack has been charged to 100% of capacity.