The AC adapter
This part, like batteries, is an essential element of your machine and also the cause of a large number of failures. In fact, one of the most fragile elements of your laptop is the AC connector, ie making in trying to connect the AC adapter plug.
The repetition of these plug and sometimes useless violence ends regularly to begin making the motherboard.
This often happens in stages, initially in contact with a bad light, after passing the wire in all directions to find the current, finally pulled the plug is sparking or roast the motherboard.
An adapter in bad condition (stripped cable, broken case repaired with tape ...) is often the cause of a fatal electrical problem for the laptop's motherboard. To avoid simply buying a new AC adapter (true), it is always less expensive than a repair or replacement of the motherboard.
About supported adapters.
To try to save some dollars (whereas often genuine adapters are not much more expensive) or simply because the dealer does not propose a genuine adapter, much buy "compatible" adapters.
I'll be frank, repair of these adapters is a blessing! Its relatively connector adapted to take the laptop, it starts more often than other female connectors.
Voltage and amperage more or less close to the needs of their laptops and an irregular flow sometimes bluntly random and annoying character "to kill the fuse" for the grill plate, while other cards and base power, are an important source of employment for technicians.
The failure rate, properly incredible, due, in one way or certainly likely, these adapters makes dis-advise them formally. I am the first to propose the use compatible parts when they are less expensive and more powerful than the original parts. But for the AC adapters I advise prudence.
