FlyEye
you're reading that about right. it'll depend on the age of the packs and whether or not the pack is also powering your camera. some transmitters have low voltage cutoff options that are good to turn off if you're flying FPV so you can get home and not lose video if the battery runs low. if you're camera is for aerial photography and you're keeping the MRC within eyesight, then you'd want the video Tx to shut off when the battery is low so you don't wreck the battery by over-discharging it. which reminds me, i have to reset my Tx so the battery saver is set to ON.
Bart