So I picked up this Duracell battery charger a bit ago, and it turns out the USB charging cable is a perfect fit for the Archos 70. So I was charging in the car with their included USB cable. Have no clue where you'd find that specific cable on its own, but that little spare battery pack actually comes in handy. i always leave it charging int the car and would just plug in the 70 when I'm in the car. The battery pack itself has a flip out mini usb so you can charge other things, grab a cheap Moto microUSB adapter and be covered for most of your devices. So it's a nice combo kit for the price and a good solution for charging the Archos in the car with the included or your own 12v USB charger. And save $3 with coupon code "techbargains3" to bring it to $19 shipped.