A current gauge shows how hard the battery is being worked. Its red zone starts at the pack's maximum continuous current, which is the C rating multiplied by the capacity in amp hours. The example pack is the RePL Guide's: 2250 mAh (2.25 Ah) at 65C, so 65 times 2.25 Ah gives about 146 A. The demand needle rises as the aircraft goes from hover to climb to a climb with payload. While the demand stays under the limit, the voltage trace holds steady. When the demand is pushed past the limit, the voltage sags, the pack heats up and a low-voltage warning appears. When the load eases off, the voltage recovers, but the heat takes longer to go. Demand levels are illustrative; only the limit is from the example. Use the Demand slider to set the load yourself.
