How to find the correct replacement batteries

How to find the correct replacement battery?
If you need a replacement batteries for your laptop, how to find?For example,Dell replacement laptop batteries..There’s no doubt you need know your Dell laptop’s make and model number.However, in many instances and for some strange reason, the laptop manufacturers make it difficult to find the exact model of your laptop making it more difficult to locate the correct Dell or other replacement parts. And, you want to avoid the hassle of having to return and replace an incorrect battery.In my experience the best way to assure you’re getting the correct Dell laptop replacement battery is to take your old battery out and identify the battery’s part number.If you’ve ever had to replace your laptop’s battery, you probably started your search with your laptop’s manufacturer (Dell),find out a credible website to order.