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Infinite Curiosity

~ Exploring ideas related to tech, code, finance, markets, adtech, AI, humor …

Tag Archives: aapl

macOS Allow CLI binaries from third-party devs

01 Friday Apr 2022

Posted by Grynn in aide-memoire, tech

≈ Leave a comment

Tags

aapl

macOS Big Sur (apparently from macOS Catalina onwards) restricts binaries from third-parties. This sux when using cli apps like alfred-plugins.

Allow CLI app: spctl --add /full/path/to/my/app

Show all rules: spctl --list

Disable Gatekeeper: sudo spctl --master-disable

Another was to achive the same result: Hold ⌥ (option) when opening app in Finder; this will fail but give you the option to “open anyway”. If you forget to hold ⌥ or it does not work, try opening anyways, then open System Preferences -> Security & Privacy -> General; click the Open Anyway button.

Rating: Bad Apple.
Good intentions (methinks), but Apple’s gonna lock down macOS, just like it locks down iOS today. 😔. This is one more arrow in their quiver.

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Apple shipped 3x as much battery capacity as Tesla in 2014

25 Wednesday Feb 2015

Posted by Grynn in finance, tech, trading

≈ Leave a comment

Tags

$TSLA, aapl, apple, tesla

So, everyone’s talking about the possibility of an Apple iCar; it looks certain that it’s got something to do with batteries (Apple’s being sued for recruiting scientists from A123) and arch-rival (wannabe arch-rival?) Samsung just bought out a company that makes automobile batteries…

So I was thinking – who sells more batteries today? Apple or Tesla? And because it’s not quite Apples to Apples I’ll try comparing battery-capacity.

Apple Battery Capacity 2014:

  • approx. 180m iPhones; the iPhone 6 has a 7.9 watt-hour battery, while the 6+ has 11 watt-hours. Presumably a decent chunk of the 180m phones were older 5, 5s, 4 etc. So let’s say the average capacity per iPhone is 8 watt-hours. Total: 180m * 8 = 1440 million watt-hours (i.e. 1.44 GWh aka Giga-Watt-hours)
  • approx: 60m iPads; the iPad Air 2 has a 27.6 Wh battery, while the Air (1) had a 32.9 Wh battery. Let’s hand-wave and say 28 Wh average. Total: 60m * 28 = 1680 million watt-hours (1.68 GWh)
  • approx: 19m MacBooks; MacBook Air’s have between 38 & 54 Wh, Pro’s 63.5 to 91 Wh. Let’s say 54 Wh on avg. Total: 19m * 54 Wh = (1.02 GWh)

Apple also sold a quite a few other devices with batteries, remotes, iPods, Beats headphones, Wireless keyboards and watt-have-you (haha), but’s let’s ignore it for now.

 

So Apple shipped 4 GWh (1.44+1.68+1.02=4.14 GWh) of battery capacity last year alone. That’s about $2 billion (cost) assuming Apple has the same cost as Tesla for battery capacity. I’d argue that it’s lower, but who knows.

 

“Tesla Motors may have the lowest rates for electric car batteries; the estimated battery costs for Tesla Motors is around US$200 dollars per kWh.” — From <http://en.wikipedia.org/wiki/Tesla_Motors>

 

Now Tesla shipped 17,300 Model S cars (http://insideevs.com/monthly-plug-in-sales-scorecard/). They can have a 65kWh or 85kWh battery-pack. Say 75kWh on average. Total: 17.3k * 75kWH = 1.3GWh.

 

So there you have it. Apple shipped 3x as much battery capacity as Tesla in 2014.

 

Some more fun napkin math (let me know if it’s all wrong…): Apple’s batteries pack 25% more energy per gram than Tesla’ (so for the same weight, using Apple battery tech in Tesla’s could improve range by 25%!)

 

The iPhone 5s battery is 26g -> 7Wh 26g (26/7 = 3.7 g/Wh)

(http://www.ebay.com/itm/Original-1560mAh-3-8V-Li-ion-Internal-Replacement-Battery-for-iPhone-5C-5S-/201227137579?pt=LH_DefaultDomain_2&hash=item2eda12722b)

 

Tesla cells are : 10Wh 45g -> (45/10 = 4.5 g/Wh)

(http://industrial.panasonic.com/lecs/www-data/pdf2/ACI4000/ACI4000CE17.pdf)

 

Apple’s batteries probably charge faster too (assuming that you can parallel charge the 1200 or so MacBook Air batteries that make up a single Tesla sized 65kWh pack).

 

Also interesting: Batteries like memory are super-high-margin. Like 60-70% gross.

 

Disclosure: I’m long Apple (+ve net delta) and have no position in Tesla.

Apple getting hammered today (3-Sep-14)

03 Wednesday Sep 2014

Posted by Grynn in finance

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Tags

aapl

Possible reasons:

iCloud Leak: A lot of celebs had nude selfies stolen from iCloud. (NSFW) example. (Apple PR). This story was catching fire for at least a couple of days before today though. For instance, Business Insider, dated Monday 1-Sep-14, 4.55am.

People could be jittery too; Apple has risen quite bit (~45%) this year. Perhaps people just want to get out before Sep 9?

Or it could be IFA
Basically every other device maker, showing off their latest & greatest

  • Samsung Galaxy Note 4 ‘egde’ looks interesting….
  • Gear S (the newest smart watch) also looks interesting…
  • Sony has a smart wearable too

Wonder if we’ll see a reversal tomorrow? Any other theories?

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