I would take rechargeable batteries, e.g. AAA, AA, C and/or D, and a dual voltage charger. Then leave them with the crew.
If you are on the United Airlines Island Hopper out of Hawaii to Chuuk, when on Kwajalein wave out the window, I might wave back
If you are on the United Airlines Island Hopper out of Hawaii to Chuuk, when on Kwajalein wave out the window, I might wave back