I got my answer, totally not acceptable.

I played the same N800 without "battery extender", just the N800 freshly topped battery, it ran 130 min straight till its knee and shut off. This compares to 135 min with battery extender. Horse5hit!!! So much for battery extender. It appears worked ONLY when the N800 battery is down to low critical, then my battery extender with 2 freshly charged 2000mAh is able to buy an additional hours, almost 50% of the native N800 battery. Not bad. It does no squat when the N800 battery is fresh and top. my next expt is to run at a very conservative measure and see how long it can run.


Edit: I was wrong about waking up the N800. My battery extender, 2 X AA 2000mAh freshly charged, seemed able to charge the N800, after waiting for 20 min, while the N800 battery charging cartoon is showing, it then waked up my N800, and has been running for an additional 20 min or so and still running, lets see how long it runs this time, and this is an internal flash boot, running on stressed conditions as quoted in previous post, almost mas audio, max brightness and WiFi streaming video.

Edit: 51 min. a set of freshly charged AA 2000mAh battery able to charge a dead N800 battery for 15 min and keep it running for another 51 min under a max/stressed conditions. Umm, maybe it is functional afterall.

Edit: 2X AA 1800 mAh also wakes up the N800 after 10 min of "charging" but runs only 2min under any conditions. Size matters
bun