li-po in hard case

[RC-Monster Mike]

The Orion/Peak batteries use Kokam cells. They have a balancing port on the bottom side, opposite the battery plug in side. They are 7.4 volt, 4800mah and about the same size as a 6 cell 3700 pack, but weigh abour 4.5 oz or so less. I just got a few in to test, actually. The battery connection actually plugs into the case using gold connectors, (the balancing port is similar), so you can easily attach your own connectors(and easily reverse voltage if you don't pay attention when you plug in the connector leads!).
They seem like a great product for off road use, as the plastic case should prtect the cells and eliminate most of the "concern" when using these in an e-maxx or electric Revo.