Meritline offers the Kodak Portable USB Battery Charger, model no. KP100-C, for $13.95. Coupon code "MLCK504CNL1" drops it to $4.95. With free shipping, that's tied with our March mention as the lowest total price we could find by $3. This charger features an 8-hour charge time and can support up to 40 hours of additional power. It has a USB port and includes two rechargeable AA batteries. Coupon expires after 300 uses.