4 16000mah 6s lipos

I recieved 4 of these monster sized lipos from work. They were used in an S900 drone that we used for topographic survey mainly scheduled quantity visits. The drone decided to end its life while about 200 feet in the air. Out of the 6 batteries I have the 4 that are in good shape. Less than 10 cycles on them. Very minor puff on 2 of them.
I need some ideas. Short of throwing another 10k into a new drone, what could I do with these?

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