Tech solution for dead batteries: WAGAN TECH Self-Charge Auto Jumper 2045
No Jumper Cables Required? Give me a break please! You would be well advised to keep a pair of jumper cables in your vehicle in case battery goes "down" and you need to seek the assistance of another driver. This device is however a handy gadget to have around for small jobs such as recharging the cell phone and laptop batteries at times when you are away from an electrical outlet.
Features:
* Emergency power source with built-in 12-volt socket
* Plug into lighter socket and in 10 minutes you are ready to go
* Powerful sealed alkaline battery with 5 amps, 14.5-volts
* Recharges from your car battery while you are driving
* Unaffected by extreme weather conditions
* Keep your car's clock, radio, alarm and Computer Memory while you change your car's battery
* Built in trickle charge protection
* Can be used as laptop battery with inverter
* Dimensions LxWxH (in.) - 8.5 x 2.25 x 2
* Cord length 13 in.
Source: Wagan Corp.