Power & batteryRuntime
Runtime
Minutes from capacity, a usable fraction, and an average draw you supply.
Capacity & draw
mAh
0 to 1
A
Capacity is shared with the other battery tools. 0.80 is an assumption, not a measurement, and average draw has to match how you run.
Calculated runtime
Estimated minutes
?min estimated
Usable 80%Reserve 20%
Enter positive capacity and a usable fraction above 0 through 1.
Constant-draw arithmetic. Real packs sag and deliver less than the label at high current.