Duracell DPP-600HD Versatile Power Source

I spent a long time searching for a portable power supply and this was the most versatile one that I could find. It has excellent jump-start power and also provides both AC and DC outlets. Other nice features are the radio and light, although it would have been better if the light were LED. The available power closely matches the times listed in the specs. In camp, it worked great for recharging cell phones, Gameboys, camera batteries. At home, it works great for powering a cable modem during a power outage to keep the house phone working.