47th Street Photo via newegg offers the Opteka Solar USB Battery Charger
, model no. BP-SC4000, for $22.95
with free shipping
. That's $2 under last month's mention and the lowest total price we could find now by $5. This 4000mAh rechargeable lithium-polymer battery includes 10 mobile-device connecting tips and features an LED power capacity display, extension cable, USB port, and more.