What to Do If Your MacBook Power Adapter Not Working?

Much like all the electronic digital gadgets, eventually Apple MacBook power adapters will stop working because of the exposure to the extreme climate, excessive wire bending, or simply that it is the aging adapter. The lifespan of an ac adapter is relying on the amount they are utilized and there isn't sure time which adapters may last. Below I'll list several ways of checking if your adapter has already gave up on functioning.

1. Examine the Laptop 
Your laptop adapter might not get your MacBook powered because the loose connection. Ensure that all connectors are accurately inserted. Check the adapter case as well. Notebook adapters usually have an LED light which lights up as the adapter is powering the notebook. If the light is off, your laptop may not acquire any power.

If this is still not solving the problem, check out electrical wall socket. The problem may merely be that power socket you are connected isn't working now days. Change the sockets to fix this issue. For your DC AC adapter of your laptop computer, examine the DC-jack. This adapter must snugly fit in. If you can get your adapter connected just the right angle or spot, then your DC-jack may be broken.

2. Check out the Adapter 
Make sure nothing at all is resting on the Apple power cord, such as notebook bag, a book, or anything that might touch your power cable. If nothing may bend the cable, the check the cable itself. The consistent bending from storing the adapter might expose the wires within the cable. This exposure may cause it to stop working properly.

3.Upgrade the BIOS (Basic Input-Output System ) 
A computer's BIOS is embedded application on a motherboard and for some PCs, BIOS controls attached hardware. Under this situation, it provides an operating system with information about hardware, and is designed to support a specific range of components. An outdated BIOS could potentially cause unknown AC Adapter problems. If ever that happens, you should visit the the Apple's website to for latest BIOS updates to your MacBook Computer.

When you have checked the above mentioned and your MacBook Power Adapter is still not working, a new one is needed. It costs you an arm and a leg to get the OEM AC adapters (Original Equipment Manufacturer, for example,if your laptop is Apple, a Apple AC adapter is OEM adapter). Aftermarket Power Adapters are best alternative to this. Many of them cost only 1/2 or 1/3 of the OEM ones and they work the same.

Source From：

http://ezinearticles.com/?What-to-Do-If-Your-MacBook-Power-Adapter-Not-Working?&id=4218685