Flight Bag Power Capacity

Trying to figure out how much battery capacity I need in my flight bag (the crappy 2.1A-shared Insignia just ain’t cutting it anymore). These aren’t ideal tests and I’ll redo them at some point with a work load going on while sipping USB power (which will hopefully recharge while providing operating wattage), but, here goes (readings taken with a Klein ET-920).

iPad Mini 4, recharged from dead to full:

13:31  Dead   9-10W
14:10  17%     7.8W  1142 mAh
15:08  44%     7.4W  2720 mAh
16:50  84%       5W  4729 mAh
17:52  98%       5W  5387 mAh
18:14  Full    1.3W  5500 mAh ("Not Charging")

So about 5500 mAh (realistically, with charging loss, ~8,000 mAh capacity on the charging pack), and requires about 10W at maximum to recharge. I’ll do a test with the screen on, connected to the Stratus GPS unit over WiFi, ASAP.