Technogy for your life

10 09 2018

Needless to say that it’s annoying
to see different standards of charging.

Big companies signed a voluntary memorandum of understanding in 2009. Apple, you also signed this MoU but nothing happened.

E-waste is a growing problem, and the rapid improvements of devices is only making it worse. We use a gadget for a while and discard it once the new model comes out, which, of course, has a brand-new port, rendering your massive collection of charging cables virtually useless.

Inextricably linked with today’s electronic devices are different chargers and cables. It’s obvious that these products are just created to maximize profits for manufacturers of devices and accessories.

Electronic devices are a complex mixture of several hundred materials. A mobile phone, for example, contains 500 to 1,000 components. Many of these contain toxic heavy metals such as Lead, Mercury, Cadmium and Beryllium, as well as hazardous chemicals, such as brominated flame retardants. Polluting PVC plastic is also frequently used.

To just declare the saying

Leave this world a little better than you found it.
(Robert Baden-Powell)to a company’s commitment doesn’t work.

It’s about time to regulate by law.

Look at the image I took with my iPhone 6s Plus. It shows my e-loot and a chaotic approach to charge batteries.

Here’s what you find on the image:

1 iPhone 6s Plus
12 Watt charger + USB-Lightning cable

2 Apple Watch
5 Watt charger + USB-Cable for wireless charging

3 Nokia 6.1
7.5 Watt charger + USB-USB-C cable

4 Microsoft Surface Pro4
25 Watt charger + special cable

5 Lumia 550
5 Watt charger + USB-Micro USB cable


No, if you don’t want to buy all these accessories twice because your devices also need to be fed when you’re in your office.

EU to study need for action
on common mobile phone charger

EU study

The sad aftermath

The small picture in my collage shows the landfill Agbogbloshie, aka Sodom. It’s part of the Ghanaian capital Accra and filled with 250kTons of e-waste from Europe every year.

A new device every year?

Well, then you’re also an essential part of the problem.

Thanks for reading.

Tesla power pack

29 08 2018

The company is not running well
(due to a buggy and fraudulently acting CEO)

but there’s hope. This little piece of technology looks really nice and it could be manufactured in an appropriate quantity.

Maybe. Or not?

Hey Elon, what’s your take?

Tesla wireless battery pack

$65 for 5W wireless charging and 7.5W via cable
Poor. You can get much more from other companies, admittedly without the Tesla logo.

Thanks for surfing by.

Watts Up

27 09 2017

Power to your iThing

🚽 WC is the traditional water closet

But talking about this would be off-topic.

Lets talk about *W* ireless *C* harging that means bringing Watts up to your iThing after laying it down on a little machine which functional principle was already born about 150 years ago.

Without the groundbreaking publication of “A Dynamical Theory of the Electromagnetic Field” in 1865, by Scottish J.C. Maxwell wireless charging wouldn’t be possible. So much for the copycat discussion and the simple fact that everything has its preceding ideas.

Again Apple isn’t the first offering WC but after listed as one of the 213 members of the Wireless Power Consortium they now want *to make the things better than they are*. And they will do it again. Others will follow.

How WC works …

ction chargers use an induction coil. An alternating current creates an alternating electromagnetic field around the coil. A second induction coil in the iPhone takes energy from the electromagnetic field and converts it back from alternating to direct electric current to charge the Li-Ion battery.

The source field must cover the receiving coil which results in a short range of energy transfer. So iPhone and charger must be in close contact without any metallic objects between them (they would be a shielding for the electromagnetic field) except an additional case for the iPhone (Leather or Silicone). A metal plate, sometimes used for magnetic car mounts, may already be obstructive.

Over greater distances this method is highly inefficient and wastes the vast majority of the energy put into the transmitting coil. Greater distances between sender and receiver coils can be achieved when the inductive charging system uses *resonant inductive coupling*.

Think of it like this …

A tuning fork can cause another to vibrate when both are tuned to the same pitch. Using the resonance phenomenon energy transfer can drastically be increased and wouldn’t require a close contact between charger and iPhone.

xcited to see what’s coming next after Apple will massively engage in the WPC. AirPower is just the beginning.

Thanks for taking your time.