Never jump start a car battery where the fluids are frozen. It could explode. - If your car battery is cracked or visibly leaking, DO NO JUMP START your battery! Again, there is a possibility of ...

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.

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