If the idea of connecting cables to a car battery scares the pants off you, but you still want to have some kind of insurance against being stranded, then a portable jump starter is the item for you.
These portable car chargers are small enough to fit in your car's glove compartment, and--when fully charged--will start up your recalcitrant car by simply plugging them into your car's cigarette lighter. They can be recharged through the cigarette lighter, as well.
Though not as powerful as a battery booster, and lacking the bonus features, their affordability makes them an attractive option for the casual motorist.
Another benefit is you don't have to exit your car. So, if it's raining or you're out in the middle of nowhere and are nervous about leaving the safety of your auto, or if the thought of attaching oversized alligator clamps to your battery terrifies you, the portable jumpstarter is a good choice for you.
Black & Decker BB7B Simple Start 12-Volt Battery Booster
The BB7B is small enough to fit in most glove compartments. It has a built-in 12 volt DC charging port for charging cell phones & an ultra-bright LED light for night time emergency assistance. No jumper cables are required--it charges & starts vehicle in minutes by plugging into your car's cigarette lighter.
Simple to use, you just take the StartMeUp2 out of your glove box, plug it in, turn your key to the accessory position, wait five minutes for your battery to recharge, start your car and go! Built-in microchip prevents power surges & delivers 36 volts to start your car. It has a long shelf-life and when you're done with it, you dispose of it like a regular household battery.
Black & Decker BBC2CB Vehicle to Vehicle Battery Booster
Small enough to fit in your glove compartment or under your seat the BBC2CB has 3 easy steps to operate the unit. Plug into the cigarette lighter of the working vehicle; connect the orange plug into the non-working vehicle; give it a few minutes to charge & start your car. No jumper cables required.
Wagan EA2045 SelfCharge Auto Jumper In-Car Jumpstarter
With the Wagan EA2045, you jump start your vehicle from inside the safety of your car without jumper cables. The powerful sealed alkaline battery has 5 amps and 14.5 volts of power. It plugs into the cigarette lighter and in 10 minutes the vehicle is ready to go. It recharges from the car battery through the cigarette lighter while driving for 30 minutes to 120 minutes.