

If your car still won't start after trying the in-vehicle method, you may need to try the direct-to-battery method instead.


While the in-vehicle method may take a little longer, it's a great option to have on a snowy or rainy day, or when you're alone in a dark parking lot or on a busy road with lots of traffic. This accessory port is common on most modern vehicles it's the outlet that looks like a cigarette lighter socket. Some jump starters – including the Cobra Jump Starter 1000A – can be safely used from inside the vehicle using the 12V accessory port.
#Compare portable jump starters how to#
How to jump start your vehicle from inside the car This may happen if the vehicle battery is too far drained to be able to be jump started. Note that if the vehicle does not start after several attempts, your jump starter may stop working (or go into "recovery mode") to prevent the battery from overheating. Disconnect the jumper cable from the jump starter and then from the battery in reverse order.Wait for the green LED on the jumper cable to light up and then start your vehicle.Connect the jumper cable to the jump starter.Connect the jumper cable clamps to the battery terminals (first Red to Positive, then Black to Negative ).How to jump start your vehicle using the direct-to-battery method
#Compare portable jump starters manual#
The instructions provided here are from the Cobra Jump Starter 800A and 1000A mentioned above, and are typical for most battery-powered jump starters, but always check your product manual before using any device. How you use a portable jump starter will depend on the model, and you should always read and follow all manufacturer instructions to start a vehicle safely and effectively. Most portable jump starters are designed to be able to easily start a drained battery in gasoline and diesel-powered passenger cars and light-duty trucks that won't start because of cold temperatures, the lights were left on, or they haven't been driven for a while. They can often jump start multiple vehicles on one charge and some models can even act as a portable power bank to charge and power your devices like smartphones or tablets. These batteries are rechargeable, and newer products should be able to not need a recharge for over a year (unless they’ve been used multiple times). Jump starters work by using a special high current Lithium-Ion battery to provide enough power to start your engine. They allow you to start your vehicle without having to call and wait for roadside assistance to come to you or ask a passerby to help jump start your vehicle. Carrying a portable jump starter, like the Cobra Jump Starter 800A or 1000A, can get you back on the road quickly and safely. Automotive safety experts recommend always carrying jumper cables in your car, but that doesn't do you much good if there isn't another person around to give you a jump. Whether it's an old battery or you accidentally left the lights on while you were away, a dead battery can ruin your day. You climb into the driver's seat and try to start the engine – only to find that it won’t turn over. You've probably been there: finally done after a few hours of errands or just getting back from a long trip, you find your vehicle in the parking lot.
