No cables, no other cars? Here's one more thing to try.

carwith an open hood
 Even if you don't have jumper cables and there are no other cars around, there's one other thing you can try if your car has a manual transmission: a push or roll start.

a car parked on a hill

To perform this kind of start, you'll need outside energy to get your car rolling, which usually comes either from friends willing to push, or, if you're fortunate enough to have parked on one, a hill.

WARNING: Only use a hill with a gentle slope and plenty of stopping distance ahead. DO NOT ATTEMPT EITHER THE PUSH OR THE HILL METHOD NEAR BUSY CROSSINGS OR INTERSECTIONS.
a car batter with the terminals indicated First, check and see if the cables attached to the battery's posts are securely attached. If either attachment is lose, tighten it and then attempt to crank the car again. If that doesn't help, proceed to the next step.

car in with the key in the Start or Crank position

 

If you've opened the car's hood to inspect the battery, shut it now and then get into the driver's set. Make sure that the parking brake is on, and turn the keys to the last position before the Start or Crank position.
a car with a manual transmission in second gear While the car is standing still, shift the transmission into second gear.
the pedals of a car with a manual transmission At this point, depress the clutch, release the parking break, and either have your helpers begin to push your car or let it begin to roll downhill. Once you've reached between five and ten miles per hour, release the clutch and allow the transmission to engage into second gear while simultaneously pressing the accelerator do deliver fuel to the car's engine.
twenty minutes icon If the engine catches and the car starts, congratulations!  If not, you can make another attempt if you have room left on the hill or your friends are willing to push again. Once the car starts, be sure to drive it around for at least 20 minutes to recharge the battery.  If you turn the car off before this time, the battery might be insufficiently charged, and therefore unable to restart.

 

If the car is driven for at least 20 minutes but wont's crank again after it has been shut off, you might have a failing alternator; the alternator is the part of the car that converts mechanical energy from the engine into electrical energey to recharge the car's battery.

 
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