Features:

• Built-in 12 volt DC charging port for charging cell phones
• Built-in, ultra-bright LED light for night time emergency roadside assistance
• Compactly designed for storage; fits in most glove compartments
• No jumper cables required, charges & starts vehicle in minutes
• Rechargeable from any 12 volt DC vehicle outlet or 120 volt AC household charger

Editor Reviews:

Product Description:
"BLACK&DECKER" SAFETY STARTBATTERY BOOSTER CAR STARTERConnects from inside carthrough 12 volt DC accessoryoutlet in boost mode for asafe&fast charge/startwithin 10 minutesCompact design stores inglove compartment12 volt DC auxiliaryaccessory outlet for chargingcell phonesBattery level indicator3-6V 3AH rechargeablebatteries download power tocar batteryBoxed

Amazon.com Product Description:
Being stranded by the side of the road with a drained car battery can cause anyone to panic, especially if you don't have jumper cables. But you can give your car battery a boost from inside the comfort of your car with Black & Decker's Simple Start Battery Booster Car Starter. The Simple Start puts you back on the road quickly--just plug, charge, and go. No need for jumper cables or waiting for help to arrive. Simply insert the Simple Start's DC adapter into any of the car's 12-volt DC or cigarette lighter outlets and wait several minutes. A boost indicator LED and audible beep lets you know when your battery is charged and ready to start.

Instead of jumper cables, plug the Simple Start into your cigarette lighter and start your car in minutes. View larger.

Charges cell phones or laptop computers.

Small enough to fit in your glove box.

Charges More than Your Battery
The Simple Start offers a powerful, built-in LED light for emergency use and a 12-volt DC port for charging cell phones or anything with a car charger outlet, including laptop computers.

Easy to Store
The compact design of the BB7B allows for storage inside most glove compartments, toolboxes, car trunks, or even under the seat.

Rechargeable
The Simple Start recharges easily from any household AC outlet or DC automobile cigarette-plug style outlet, so that it will be ready the next time you need it.

Warranty
Black & Decker offers a full 2-year warranty.

Rating : - garbage
I have tried this product on four separate vehicles with three different users pouring over the instructions with absolutely no success. The old reliable products which clip directly to the battery are somewhat more expensive, but well worth the investment Not only is the product not worth purchasing, it may cost you more in the end if you have to somehow rely on it in any way. I have lost hundreds of dollars by relying on this garbage.