How to Buy a Car Battery

Katrina dropped me home after a party one night, and while she was about to take off with the car, it almost refused to start. We didn't know what was wrong with the car. But soon we discovered that the car battery had drained out, Katrina forgot to put off the lights in the car while we were enjoying at the party. Whoa! We were in such a fix! But one thing was for sure, we needed to replace the battery, and to do so, we needed to know all about buying the car battery before we replaced it. And if you are facing the same problem of "how to buy a car battery" or planning to  here is more on that aspect.