How Long Should I Let My Car Battery Charge. The risks to using your car to charge a flat battery arent great but they are real. Now theres a lot more to storing your battery than just placing it on a shelf in your.

It is not going to harm your battery if you do so unless you allow it to charge to 100 percent each night. There are many possible issues that could lead to your car battery taking a long time to charge. Depending on the age of your battery the capacity and construction of the charger and the charging technique used it may take a few hours to reach a complete charge.
Again assuming that the battery can still hold a charge.
A DEAD car battery can cause troubles to the owner anytime anywhere. As long as the mechanical action of the alternator is taking place. Right after jump starting a car a battery may show 12-volts. Cars have very different effects on the alternators giving everything from 30 to 150 amperes.
