Maximum Capacity goes to 95% in just 4 weeks usage and 23 cycles

ahaomar wrote:

last thing is any tool which that we can stop or hold to one level . daily decreases the number i dont think so it normal with 8-9 hours usage with plugin and with batter both cases. right? do share your thoughts please.

There is no such tool.

That computer is a battery-CAPABLE device. It is not optimized as a battery-operated device. (It is NOT an iPhone.)

Your computer performs best when connected to AC power. It can use the full output of the Power Adapter AND when doing especially challenging work will also freely "borrow" power from the battery. In some cases, even with the power adapter connected, the charged state may even decline during stressful work.

When used only on battery, your computer has no extra cushion of power, and may perform more slowly. However, for ordinary non-stressful tasks this may not be objectionable (possibly not even noticeable.)

In general, you should ALWAYS connect AC power when it is possible to do so, and only run on batteries (which could be somewhat slower) when no AC sources are at hand. Your Mac will NEVER over-charge.

Batteries are a wear item, like the soles of your shoes and the tires on your car. Their expected lifetime depends on use (as reflected in Charge cycles) and also in the passage of time, used or not. After a while, you should expect to have to replace the battery.

Battery life also depends on two factors you may be able to control a bit better. Lithium polymer batteries deteriorate when they get too hot, and when they are subject to very deep discharge. These should be avoided when possible.

Despite using these batteries in millions of Apple devices, there is still an increased amount of of randomness in exactly which battery will fail when.

Apple SUGGESTS (but does not Warrant) that your battery MAY last as long as 1000 charge cycles, provided all other factors are well-controlled.

Apple uses the criterion that a battery that doesn't to hold 80 percent of its original charge capacity should be serviced, and likely replaced.

When designing systems, that 80 percent rule is intended so that, over a Very large sample of devices, almost all will be able to achieve their 'mission' -- still have at least 80 percent capacity at the three-year mark.

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When you present your Mac at the Genius Bar with a battery complaint, the technician will perform some diagnostic tests on the battery, looking for hidden faults. If your battery passes all those, the question the technician will ask is "is this battery still able to deliver 80 percent of its original capacity TODAY."

If it is, that battery is working as intended and will not be replaced.

When your battery can no longer can perform as expected, you will need to replace it. Yours is working just fine now, and you should use and enjoy it. Batteries wear out. Their levels decrease with time. Do not obsess on exactly how much it has used in in any given period. The next period will be different.

Batteries - Maximizing Performance - Apple

<< On youtube some say if i use fully discharge the battery then gave a break of 1 night and then fully charged >>

if your phone contained a nickel-cadmium battery (which have NEVER been used on iPhones) it MIGHT have some merit.

For Lithium batteries, Deep Discharge just shortens the battery lifespan.

There is a tremendous amount of BAD information on the Internet. you need to be looking at "who is saying that", and whether anyone with authority posts separate that that is a good idea.

on You Tube you can find procedures for microwaving your phone to refresh it. Do not do that, it will ruin your device.

on YouTube, you can find exact measurement and procedures for drilling a hole along the bottom edge of your iPhone, to allow a standard headphone jack to be inserted. Do not do that, it will ruin your iPhone.

ahaomar wrote:

So as what i understand i can only wait till 80% of maximum capacity before that i cant do any thing right? also It cant go to back to 100% right?

When you drive a car, the tires scrub on the roadway, and some of the rubber wear off, permanently.

When you use a battery-capable computer, some of the battery capacity is used up, permanently.

Batteries are a wear item. You are witnessing perfectly normal wear. From the moment you turn it on, if the battery does not return to 100 percent capacity, that is expected behavior.