I am being overcharged - Computers & Internet

Change the alternator

i would say pcm.these. are notorious for getting spiked from ignition sys.have ya had any perfomance problems in the past?

The level of overcharge will dictate the severity of the possible problems. The most common problem with overcharging is creating high compressor head pressure which over-amps the compressor motor which waste energy and shortens compressor life. Installed high pressure safeties will usually shut off the unit off and must be manually reset. High system pressure also results in higher evaporator temperatures and higher air discharge temperatures. Grossly overcharged systems could return liquid to the compressor, destroying it.

You need to have a repair shop fix the problems
you put in there, from trying to work on an
A/C system without proper knowledge or equipment

Most laptops(newer ones) have technology in them that will prevent any type of overcharge. If you are weary or it is an older laptop you can unplug it once its fully charged and that will avoid any problems with overcharging.

Over charging could be the result of several things including:

Faulty Voltage Regulator
1. A car's battery will overcharge if the voltage regulator isn't working correctly. A voltage regulator is usually part of the alternator, and is used to keep a steady flow of voltage to the battery. If the voltage regulator is defective, it will send either too little or too much charge to the battery. If it sends too much, the car battery will overcharge. The voltage regulator is easily replaceable at an easily affordable price, sometimes for as little as twenty dollars, as of 2009.
Faulty Alternator
2. Sometimes the alternator itself can be at fault. The alternator is the device that converts the mechanical power of the engine into electrical power to charge the battery. When an alternator breaks, it usually stops creating electricity for the battery, which will then eventually die. However, if the wrong alternator is placed in the car, or if the alternator is running at the wrong pace, it will create too much energy for the car battery, causing it to overcharge. The alternator is another easily replaced part.
Incorrect Charger Use
3. If a battery charger is used to charge your battery outside of your car, improper use of the charger can result in overcharging. If a battery is placed on the charger too long, it can result in overcharging, and a significant decrease in your battery's lifespan and efficiency. This is why it is important to read about your specific battery and understand how long it needs to charge to be effective. Too much charge will lead to problems.
Faulty Battery Chargers
4. Sometimes chargers can be faulty. Their settings may be wired incorrectly, or the charges labeled incorrectly. As a result, your battery may be getting overcharged, even if you are carefully monitoring your charging. This is a problem that is hard to avoid, as manufacturing mistakes can happen anywhere, anytime without warning. It is a good idea to test your charger regularly to see if it is running correctly.
Heat
5. Extreme heat in the summer can also have an adverse effect on the car battery. If the battery has been previously overcharged, extreme heat can increase the problems caused by overcharging, and exacerbate any other problems with the battery. This problem can be hard to avoid if you live in a warm climate. The only real way to ensure safety against this problem is to avoid overcharge in the first place.

Hi and welcome to FixYa,

Almost always, overcharging would indicate a faulty voltage regulator or more specifically, shorted.  A shorted condition would not adjust to the need/status of the battery but supply to the battery an always maximum charging current, hence the overcharging.

On most versions, the voltage regulator would be behind the cover below the battery.

Good luck and thank you for asking FixYa.

Never saw a charging system problem cause anyone to fail inspection. But, overcharging will cook the water out of your battery and can damage the computer system if not taken care of. Overcharge can be caused by either a grounded alternator field wire or a bad regulator. Since the condition appeared after replacing the alternator it too is suspect as an internal grounding can also cause that.

you should purchase a mobile v3 car charger for the phone and do not use the other one you have

I would suggest replacing the battery and try not to overcharge the new one