C&J.com is offering the Kensington mini battery pack and charger for iPod and iPhone (model no. 33442) for $34.99. That's a price drop of $25 off their regular price of $59.99. Shipping starts at $2.95 and sales tax applies for residents of New York state.

The Kensington mini battery pack and charger for iPod and iPhone extends play times on music up to 30 hours, video up to six hours and talk time up to three hours. It is rechargeable and has a retractable USB charging cable. The battery meter displays remaining power levels.