Charging car batteries is really necessary for those who have a car. Some people need to go garages or exporters to help to charge the car's battery, but you can charge a car battery at home easily. It is a very process to charge a car battery at home.
First thing you should know why would you need to charge your battery. There are a lot of reasons, I can think of some might be that the car was left in storage for a while or that someone left a dome light on or someone just came out one morning and it wouldn't start. The only reason to basically use a charger and then you know go about your business would be if you do know that you left a light on and or if it was just set for a long period of time. Then you might just charge the battery and everything would be fine.
Now if your battery just came out one morning and your battery's dead there might be other reasons the alternator of the charging system the car not working properly. The battery itself is going bad so you really need to define why you're charging the battery as to what your next step would be after you charge, but to charge a battery basically you're going to hook up the red terminal. Normally on a battery charger red is positive and black is negative as long as nobody has accidentally switched those that should be fine.
Now what you have to do is make sure your charger is off at this point you want to make sure that you identify on your battery which one is positive and which one negative. Sometimes people make a big mistake that they just assume red is positive and black is negative, that's an industry standard. And when the car is brand new that probability was true, but when someone changes batteries sometimes they change terminals or change the battery cables, and maybe they bought a black one it was a red one or change the terminals and now they're both red.
So just pay attention to make sure you always look at the battery and determine which one is positive by the plus sign and which one is negative by the negative sign.You have to hook up your positive to your positive give it a little twist make sure you've got a good connection negative to negative and on your battery charger. It will have several settings if you're just trying to simply get the vehicle started you would go up to the jump start mode or the engine. Start mode if you're just trying to do a long term good charge you want to go down to the lowest setting and just let it go for a few hours.
If the battery's healthy it should take the charge just fine and you should be able to start your car and go about your business and that is charging your battery.