Like all electronics, power adapters finally stop working due to use or aging. Below are any things to check.
1. The Laptop
Your adapter might not be functioning properly because of a loose connection with the laptop. Make sure that all connectors are solid.
Power Adapters
2. The Adapter
Check the cables, constant bending can expose wires within the cable causing it to stop working properly.
Check the "brick"as well they regularly have an Led which lights up while powering the notebook. If the light is off, your laptop is not getting power.
Examine the Dc-jack, the plug that inserts into the laptop should fit snugly. If you can get power when its connected "at just the right angle" then the jack may be faulty.
3. The Outlet
Check the outlet. This might be an unavoidable one but the problem may be no power.
If you've checked all the above, a new adapter is probably needed. Brand new adapters are as a matter of fact expensive. Aftermarket adapters are regularly lower capability and work intermittently at best. A terrifying alternative is to purchase new, open box, these are returned items, often with a warranty at a fraction of the price.
If you're purchasing a new open box item it's best to go with a reputable seller, that way you have some recourse in the event there is a problem. Most resellers will give you a warranty. Additionally, some will give you a money back warrant minus a restocking fee. However, before you buy from any society get some references and check with the best firm Bureau to make sure they have a good track record
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