Player 2 and I have been PM'ing back and forth recently. I brought up the subject of using two isolated 520T batteries on a single unit for greater "battery-free" time. Player 2 mentioned that fcm once stated something about de-pinning the battery and using a larger (both in capacity and physical dimension) one. I'm curious if this applies to just a random lithium-ion rechargable from, say, Fry's Electronis or similar, or if it has any odd requirements (different voltage, maybe different type).

If it's that simple I'll do it as soon as possible. :-) I still have this second battery backup laying around though, maybe I'll put it in female-friend's '99 Civic instead of using it in mine.