Picked up this laptop battery at Best Buy over the weekend and finally got a chance to test it out tonight at home:
http://www.valence.com/ncharge2.aspRunning V3 @24/48 into the VXPocket V2 into a Sony PCG-SRX87/Wavelab 4.0, the ncharge lasted ~ 2.5 hrs. It's now running off the internal laptop battery and will probably go another 1.5 hrs. For this run I left the monitor on at 100% brightness. How much more time should I expect to get if I dim the monitor 10 min after starting the recording? In the field I should be able to monitor levels off the v3, so the monitor will probably be off under normal conditions.
I plan on testing it again without the monitor but curious if anyone else has been using this battery.