I got a backup 2800 mAh micro usb charger for under $12 on Monoprice. Has worked just fine for all the times when it looked like I'd want a bit more charge. P

I got a backup 2800 mAh micro usb charger for under $12 on Monoprice. Has worked just fine for all the times when it looked like I'd want a bit more charge. Pretty cheap compromise to me.