A123
I have a bunch of A123 batteries and a charger all in good shape. the Cells are loose, but you can make them into whatever you want.
10cells and the charger. I'll let them go for $150 shipped
Right now they are setup as 2P2P saddle and 2 3P1P saddle. I used them in an RC10B44 with a MM 5700. the car was insane fast.