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Customer Reviews
A must have for UMPC owners... 
2007-04-10
I used the Tekkeon myPower All MP3400 for the past 8 months as a power supplement for my Samsung Q1 UMPC. It can't be beat. Beautiful style and great performance. Although it doesn't ship with the power tip for the Q1, Tekkeon will send you one for free or you can buy it at Radio Shack. I highly reccomend the Tekkeon myPower All MP3400.
The MP3400 ran my 7 inch DVD player for 5.5 hours 
2006-10-29
The battery is packaged in an attractive plastic casing and comes with a leather case and a cloth bag with eight adapters. I didn't need to use an adapter with my DVD player.
I have a 7" DVD player rated at 9 volts but the battery that came with it was rated at 7.4 volts.
I charged the Tekkeon MP3400 and then ran the DVD continuously until it stopped playing. I had the voltage set to 7.5 and I had removed the original DVD battery.
It is advertised at running DVD players for up to 7 hours and I got 5.5 hours out of it. I suppose it might make 7 hours if I had a 4 or 5 inch player.
I really like the way you set and lock the voltage and the way to check the power level in the battery.
I am pleased with the performance that I received. It sure beats the 2 hours or less that the cheap original battery produced.