It's scary when your car doesn't immediately start on the first try, but don't get complacent when it does start on the ...

Start the car with the weak battery. If it doesn’t start, check your connections and tighten or clean as needed. • If it does ...

How Long Does It Take to Charge a Car Battery ... consider replacing it. If you have to jump-start your car frequently, check for other problems, like a faulty starter or alternator, and fix it.