Won 4 Powered Pallet Jacks at Auction

I won one for 30.00 and 3 at 45.00 each. They are older units with a 4000 lbs max load.
The batteries on these are dead but they were still included, although no chargers were included.
I figure that in just battery scrap I am already ahead of what I payed, These batteries are big weighing in at 67lbs each and 3 of the units had 4each.
The pallet jacks each probably weigh 5 or 600 lbs even after the batteries are taken out.
Has anyone ever scrapped a power pallet jack before?
Thanks, Stlscrapper