Car won't start because of a dead battery? If you've got access to jumper cables and another running vehicle or a portable jump-starter, you can be back on the road by following this simple set of steps.
Keep your jumper cables in their case when you're not using them because your battery could die where there's no mobile data coverage, thus precluding you from accessing this how-to gallery. The directions on this case could save you a headache.
Once you've made all your connections, start the operable vehicle's engine and run it up to 1,500 rpm for about three minutes. After that, your once-dead battery should have enough charge to start the engine. Remove the jumper cables in the opposite way you attached them, drive your car for about half an hour to keep charging the battery and you'll be good to go.