Get out the sandpaper, grinders and wire brushes! Physical removal of rust involves using something harder that the rust you want to remove and using it to wipe off that iron oxide. Wire brushing will take the longest time, sandpaper is better and if you use a power tool or air tool it's even faster.
The amperage rating isn't sufficient (as noted) and it isn't necessarily the same polarity either. You can possibly check if there is a polarity diagram on the adapters. In general, laptop power supplies are not interchangeable. So probably safe and unlikely to catch fire is about the best advice you'll get. posted by chairface at 4:47 PM on December 20, 2007. Thanks; I think I'll just wait and get a new replacement adapter tomorrow-just to be safe.
The W stands for Watts, which is a measure of electrical power. A power supply with a higher wattage rating is capable of delivering more power to your computer. That's more electrical power. It won't make your computer run any faster or give your more computational power-this is simply about electricity.t's better to have too much power than too little.. I've heard a concern that a high-wattage power supply can somehow force the power onto the computer, causing overheating and burnout. Nothing could be further from the truth. A power supply supplies power in response to need; it doesn't push power anywhere.