Technocel have their battery pack productions rolling in full swing. After an impressive showing at CES, the company has now launched a twice-as-good PowerPak Duo pack that doubles up as a USB charging port as well. It contains a 2500mAh li-ion battery that's a lot more than what the earlier model showcase, and also an extra USB charging port, for just in case. Technocel claim that it can conjure up to 7.5 hours of talk juice in a battery-drained phone.

The PowerPak Duo is compatible with 95% USB devices and will cost $70, when it releases on April 1, this year.

[Engadget]