Battery life and external hard drives

Although I have an I phone I am totally new to mac computers.I am just looking at buying a mac air 11.6 purely for portability. I have looked at other cheaper brands due to cost factor but have found problem reviews on all and don't want anything that is going to cause more hassle! I have a couple of questions though- how long do batteries usely last as a discussion on here suggested they only last a couple of years?The other query is in regard to storage - tried asking a retailer ( non apple though) and he was not much help. I am only using it for basic internet and Office ( going to purchase). I don't store loads on my laptop as tend to currently use a USB memory stick to transfer docs to work computer. I am told though macs don't use the normal external storage systems and will need to buy separate one. If I do, will I be able to use the memory stick on a work laptop ( think they are dell)?

MacBook Air

Posted on Jun 9, 2014 10:53 PM

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3 replies

Jun 9, 2014 11:00 PM in response to Robins1968

if you treat the batteries perfectly, 4+ years.



depends on HOW deep you use them too.


You always need MORE than one external HD, 2 is 1 , and 1 is none. Dont make that mistake,


as to storage, all questions about same are here:

Methodology to protect your data. Backups vs. Archives. Long-term data protection




Robins1968 wrote:


I am told though macs don't use the normal external storage systems and will need to buy separate one.

whoever told you that LIED to you.


A hard drive is a hard drive, you just format it for a Mac OSX.






heres how NOT to treat a lithium battery:


General consideration of your MacBook battery

User uploaded file

Contrary to popular myths about notebook batteries, there is protection circuitry in your Macbook and therefore you cannot ‘overcharge’ your notebook when plugged in and already fully charged.

However if you do not plan on using your notebook for several hours, turn it off (plugged in or otherwise), since you do not want your Macbook ‘both always plugged in and in sleep mode’.


Do not perform “battery calibration” on your current Macbook. There is no calibration of current Apple portable Macbooks with built-in batteries.

A lot of battery experts call the use of Lithium-Ion cells the "80% Rule", meaning use 80% of the full charge or so, then recharge them for longer overall life. The main quantified damage done in the use of Lithium Ion batteries are instances where the internal notebook battery is “often drained very low”, this is bad general use of your notebook battery.

All batteries in any device are a consumable meant to be replaced eventually after much time, even under perfect use conditions.


➕If the massive amount of data that exists on lithium batteries were to be condensed into a simplex, helpful, and memorable bit of information it would be:


1. While realistically a bit impractical during normal everyday use, a lithium battery's longevity and its chemistry's health is most happy swinging back and forth between 20% and 85% charge roughly.


2. Do not purposefully drain your battery very low (10% and less), and do not keep them charged often or always high (100%).


3. Lithium batteries do not like the following:

A: Deep discharges, as meaning roughly 10% or less. Avoid this in all instances if you can. This is hard on your battery.

B: Rapid discharges as referring to energy intensive gaming on battery on a frequent basis (in which case while gaming, if possible, do same on power rather than battery).

C: Constant inflation, as meaning always or most often on charge, and certainly not both in sleep mode and on charge always or often.


From Apple on batteries:

http://www.apple.com/batteries/notebooks.html

http://support.apple.com/kb/HT1446

"Apple does not recommend leaving your portable plugged in all the time."

Jun 9, 2014 11:28 PM in response to PlotinusVeritas

Thank you that's just the info I was looking for. Am not surprised re salesman on the hard drive as he wasn't that helpful in general. So will the existing external hard drive I have work? He told me I needed to pay them to do a data transfer? Or will the act of formatting wipe the drive clear anyway so best to buy a new? When I looked at the storage devices on the apple website they certainly looked like the USB and not lightning connections.

Sorry last question- friends have warned me that Microsoft doesn't work that well on macs so not bother buying?

Jun 10, 2014 12:53 AM in response to Robins1968

yes, if you format it, it would wipe the HD



you can use software for reading/ writing to "PC" format (meaning NTFS format)


use the program called PARAGON or TUXERA


as if a "translator" for read/write data from your Mac to the "PC formatted" HD.



however just consider also getting another HD, you need 2 anyway for data backup redundancy.

The single biggest error people make is feeling safe with ONE external data backup, and thats always a terrible error people make.


HD are cheap as dirt. Just format the new HD in MAC OSX extended journaled.


and use the application(s) above to read and transfer the data from your "PC formatted" HD.




Forget about lightning connection HD, USB3 are plenty fast enough, and all HD are limited by spindle speed and spin-ups.


Microsoft OS works find on Macs , whoever told you that , told you another fib.

However Id prefer to run Win7 rather than Win8 on a Mac, but both will work fine.



Being a HD "collector" of sorts, and investigator of them in great detail, here's your best choice on HIGHEST quality HD to purchase:



huge storage, low cost, high quality, very small and portable.


BEST FOR THE COST, Toshiba "tiny giant" 15mm thick 2TB drive (have several of them, lots of storage in tiny package) $100

http://www.amazon.com/Toshiba-Canvio-Connect-Portable-HDTC720XK3C1/dp/B00CGUMS48 /ref=sr_1_3?ie=UTF8&qid=1390020791&sr=8-3&keywords=toshiba+2tb




best options for the price, and high quality HD:

Quality 1TB drives are $50 per TB on 3.5" or $65 per TB on 2.5"


Perfect 1TB for $68

http://www.amazon.com/Toshiba-Canvio-Portable-Hard-Drive/dp/B005J7YA3W/ref=sr_1_ 1?ie=UTF8&qid=1379452568&sr=8-1&keywords=1tb+toshiba


Nice 500gig for $50. ultraslim perfect for use with a notebook

http://www.amazon.com/Toshiba-Canvio-Portable-External-Drive/dp/B009F1CXI2/ref=s r_1_1?s=electronics&ie=UTF8&qid=1377642728&sr=1-1&keywords=toshiba+slim+500gb





*This one is the BEST portable external HD available that money can buy:
HGST Touro Mobile 1TB USB 3.0 External Hard Drive $88

http://www.amazon.com/HGST-Mobile-Portable-External-0S03559/dp/B009GE6JI8/ref=sr _1_1?ie=UTF8&qid=1383238934&sr=8-1&keywords=HGST+Touro+Mobile+Pro+1TB+USB+3.0+7 2 00+RPM


Most storage experts agree on the Hitachi 2.5"


Hitachi is the winner in hard drive reliability survey:

Hitachi manufacturers the safest and most reliable hard drives, according to the Storelab study. Of the hundreds of Hitachi hard drives received, not a single one had failed due to manufacturing or design errors. Adding the highest average lifespans and the best relationship between failures and market share, Hitachi can be regarded as the winner.

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Battery life and external hard drives

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