There is a new generation of low self-discharge NiMH batteries out there, GP calls them Recyko and the Sanyos are called Eneloop. I put together two 4-cell packs for use in the MicroMagic. These have a nominal capacity of 2050 mAh - I will post later some results of discharge tests. Weight seems to be around 125 grams including some epoxy that holds the cells together, the heatshrink tube, and wires with Deans micro plugs.
