You could get a charger like the Noco Genius10 off of Amazon. The bad news is that you may not always have a battery charger on hand if you're out on the road, or if you do, it might not be ...

And, if you do charge it to 100%, don't leave it plugged in. This is something most of us do, but it's another thing that will degrade your battery's health.

If your car's battery needs a boost with a 12V charger, you may be wondering how long the whole ordeal will take. A bit of a wait is better than alternatives.