Even if you intend to bring along a battery with a capacity greater than 160Wh (only the last one in your list exceeds this, 27000mAh is just about 160Wh at typical USB voltages) using a medical equipment exemption you'll be having to contact each airline on your itinerary for approval each time you want to travel, which is going to be eternally troublesome. Bringing two packs of 20000mAh or 26000mAh, if you really need that much power, would remove the need to notify any airlines.