Originally Posted by
rickair7777
If you must carry a battery (most devices now have enough battery capacity to easily last an entire FDP), use a good quality one (Anker works) and if it gets damaged get rid of it. A Li battery fire in the cockpit could ruin your whole day.
I’m lucky if my iPad mini makes it through 80% of my day without needing to plug in. And that’s with brightness at zero and only company approved apps. Agreed though the battery is not the place to skimp.