Battery Cycles

okay, know how battery cycles , work. want know is:

• how many cycles battery has
• how old battery is
• how many mah macbook shipped with
• how many mah have now

reading thread on different site macbook batteries , commenting battery info. of them commenting saying reached 120 cycles per year. 1 guy said mac 3 years old on 250 cycles (avg. 83 year). think person had 400 after 2 years. in 'system information' says age of macbook 3 months old (when arrived said 1 months old, i've had 2 months) , have 98 cycles, using many cycles?

i'm asking because realised apple batteries more or less useless @ holding charge after 1000 cycles , if i'm averaging 100 every 2 months gives me 1.7 years until macbook more or less desktop... to me seems poor previous windows laptops owned lasted long , expect lot more machine on £1k. (i have been told batteries in newer macbooks glued in place , replacing battery hard job , cost lots of money, mistake me if i'm wrong).

thing, macbook shipped 6300mah capacity , after 2 months , 98 cycles down 5500mah? have heard fluctuates didn't think go far enough take off 800mah...

if left mac plugged in longer amounts of times, use less cycles. bad battery? leave iphone in overnight don't think laptop. have heard people wrecks battery keeping plugged in after you've reached 100% if you're still using it, can second opinion? (i thing that's load of crap i'm paranoid battery) charge 100% , leave in hour or let "trickle charge".

know i've had mac 2 months , sound annoying because new, i'm paranoid battery stuff. because of fact i'm 17 , i've saved years, i'd hate think second waste of money, yano? (i don't, i'm in love @ moment).

advice appreciated, thank

 

my ipad 4 has 2 years old , did 90 cycles battery mah -11600
iphone 6 plus - 23 cycles, bought 3 months ago battery mah -2900

 

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