Buy.com offers the Miccus USB ChargeBlock for Smartphones
, model no. CBBB-10, for $17.99
with free shipping
. That's a $2 under our May mention and the lowest total price we could find by $11. This 1,000mAh rechargeable lithium ion battery features USB micro and USB mini fold out connectors and USB micro or USB mini input for charging. It purports to provide up to 3.5 hours of talk time, up to 210 hours of standby, up to three hours of video playback, and up to three hours of Internet from a single charge.