(A premium laptop's battery might last longer.) Every time you charge your battery, the total capacity of the battery is diminished. Originally it may have had a run time of 3.5 hours, but after a year it'll run out of juice at 3 hours, even on a full charge.
[Excerpt] We will look at the principal occupational health hazards and exposures themselves and some of the. related issues. We will look closely at the chemical composition of autobody shop products to see what. components appear to be particularly hazardous, how you are exposed to them, and what you can do to. minimize exposure. The health effects discussed for these products are based upon the exposure of the. professional, not the consumer. This manual deals with chemical exposure only; other issues of interest to the. autobody shop worker may include occupational exposure to noise and neuromuscular problems such as.
if you mean trouble codes auto zone can only read the codes but a shop can read the codes and hook up a scanner or a scope that will give a lot more detail on how your car is running. and a good mechanic can analyze the results and make the needed repair without just replacing parts at random.