Just found this out the other day, well if you are getting 30 cents a pound it isn't too big of a deal, but my friend and I went in, we had 4 batteries that were prob 14 pounds or so apiece, and they gave us 20$ total. They don't pay by weight, they pay a blanket 5$ per battery.
They only allow you to bring in 2 per person per day.
Worth remembering for when you have little light batteries.
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