Surface Book 2 charging top guide



Explore a number of options to charge the Surface Book 2 faster. The next video showing charging the Surface Book 2 in the car.

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Lenovo YOGA Book battery charging speed test 0-100%



New From Btekt: “Honor View 20 One Month Review | Style Over Substance?”
https://www.youtube.com/watch?v=Z8pT37DHd2s –~–
We put the battery of the Lenovo YOGA Book to the test in a timed charging speed trial from 0-100%. With it’s 8500mAh cell, this is a big battery, but packing the same fast charging tech as the P2, it should still perform well. Does it? Watch our YOGA Book battery charging speed test video to find out and if you have any questions or comments, fire them in the comments section below!

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Music credit: Nicolai Heidlas, Real Ride

Thanks for watching – Basil and Gina 🙂

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Mac Book Charger – Keep The Batteries Full For Constant Use

Mac notebooks are one of the most preferred notebooks by the people especially among those working in the industry. This is primarily because of the high end configurations exhibited by these notebooks apart from the extreme slim look of the Mac books. In fact it is the dream of each and every one to have Mac book when compared to any other laptops. You might be bit confused regarding the battery life of these books in case if you are planning to get one. In fact battery life is the most discussed topics regarding any kind of notebooks as these laptops are transported by people to different places for carrying out most of the tasks wherein they may not be able to get sufficient facilities for carrying out the charging of the notebooks. The battery of the Mac book is in fact considered to be long lived when compared to other laptops and you should take certain steps initially in order to increase the life of battery. One of the main step that must be adopted must be to charge the notebook to great level as soon as you open the packet. You should keep your laptop for charging without using it until the battery is full. You should try to use the same charger designed for these books and most of the cases the charger comes along with the notebook other than the case if you try getting the notebooks from black market.

These chargers can be used for charging the laptop at your house as you will only be able to find the sufficient socket only in your house rather than in any other place. If you are involved with regular travel to short distances through flight then you will not be able to make use of these chargers that comes along with the Mac book and you will have to make use of ibook charger designed for Mac use which can be used for charging while on flight. That you should be really careful while traveling and you should never forget to take the separate charger as it is the only way by which you could charge the batteries on these. Also it is advised to keep it safe away from the hot burning heat in order to prevent the Mac books from any dangers that can arise out of the increasing heat.

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A Book Review of Atomic Farmgirl: The Hanford Nuclear Site and the Tragedy of the Downwinders

Atomic Farmgirl is a well-written account of the life of a downwinder’s family and her neighbors in the Palouse Hills of eastern Washington State. A downwinder is a person who lived in the area where iodine-131, Hanford Nuclear Reservation’s nuclear waste, was released in the late 1940s through the 1950s. After the Freedom of Information Act was passed and the Spokesman Review started researching the releases and comparing them with the wind patterns, this information became available to the populous at large.

This downwinder’s story is open, honest, and filled with excellent examples of character development. The author, Teri Hein, paints a picture of life in small town farm communities in eastern Washington. She covers the rolling hills, harvest time, wheat, Steptoe Butte, loess, bird-hunting, small schools, churches, football, basketball, baseball, parades, horses, and the list of goes on – joyous memories of growing up in a small farming community. However, some looming treachery began to emerge. First, her father, then a neighbor boy, another childhood friend, a neighboring mother, and the list grew over two decades. These people, the ones she knew most closely began to get sick and most died. They contracted thyroid disease or cancer in one of its many forms – leukemia, lupus, Hodgkin’s lymphoma, and more. Eventually, Teri became aware that something unique and sinister was occurring in her neighborhood, as seven of the ten farm families within a square mile had come down with the diseases. In most of those families it was multiple members with thyroid disease or cancer. Her book covers the lives of those victims.

Like Teri, I grew up in one of these small towns – Oakesdale, just 25 miles southwest of Teri’s beloved Fairfield. If you draw a 100-mile line between the Hanford site and Fairfield, Oakesdale will be bisected by that line, a line which also represents the prevailing southwesterlies. The experience of my neighborhood is congruent to that of Teri’s neighborhood.

One cold winter morning in the mid-fifties we awoke to a freshly fallen cover of snow. It was dotted with beautiful pink spots like some miracle, but it was not from nature, nor from heaven. I believe it was one of the many releases of radioactive toxins from the Hanford Nuclear Reservation. We frolicked in that snow, made snow angels and snowmen. Within the year, my closest neighbors Tom Crossett and Ray Ebert developed thyroid disease. Subsequently, Tom’s sister Suzy Crossett, my cousin Susan Gregory, Tom’s closest friends Danny Horn and Mike Lamb, my closest friend John Rogers, and three of the four Byrum brothers have all died of cancer, long before their time. Consequently, Teri’s account is deeply poignant to me. Although I knew some of her older friends, I’ve never met Teri Hein, but I feel as if I’ve known her all my life. Teri filets her soul open to the world and exposes every nerve.

I highly recommend Atomic Farmgirl: Growing Up Right in the Wrong Place. Everyone should be aware of this tragedy.

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USB & Power Bank charging supported New Year Diary Note Book



16GB Pendrive, 8000 MaH Power Bank, Android / i Phone / C Type Mobile Chargers and Organizer

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Relay switches off on a too high supply voltage on the power rail (12 V or 24 V)



Circuit with a Schmitt trigger where a relay switches off on a too high voltage on the power rail. Switching without any doubt or strange “typical switch effects”.

Developed for 12 V or 24 V lead acid battery chargers. Set the “drop off” voltage with P1 (the 10 K potentiometer, critical aligning). Integrated in my solar panel charge circuit that charges a 24 V – 75 AH battery out of a 45 Volt max 5 Amp solar panel.

Earlier published, but with a flaw (I forgot the 220 K resistor….), so the earlier publication on YT was deleted. Thanks to YT user “mark sk”.

Many of the videos hat I have published on You Tube can be found via my Channel Trailer: Link is

In thematic order you can find these video’s under the “comments” section.

Important: to find all the links to the (+/-700) video’s on my YT Channel, select, in the comments section, “NEWEST FIRST”

A big bunch of links (only links) to my schematics (445 links to You Tube video’s) are published in this booklet

on the LULU website (cost 2 Euro’s)

All my books about electronics are available via the website from “Lulu”, search for author “Ko Tilman” there.

Link is https://www.lulu.com/shop/search.ep?keyWords=ko+tilman&type=

My books are also available via Barnes and Noble and via Amazon.
Regarding all my video’s: I constantly keep them actual, so the original video’s with the most recent information are always on YouTube. That is the source, and search there. When my video’s are reproduced or re-edited on other websites/channels you can not (!) be sure about the original content (=really working electronics) and important adaptations to the circuits.
Be aware of that, I saw on the internet many of my circuits reproduced in a poor or even not proper way. I can not help that, sorry. Upload 24 september 2018.

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Lead acid car battery charger with automatic switch off between 13 and 14,5 volt (schematic)



Sorry: the video stops suddenly due to a low camera battery, but everything was told so far.

Schematic & demo of a lead-acid car battery charger that automatic switches off on the following battery voltages (set with a 3 pole switch): 13,23 Volt / 14,18 Volt / 14,50 Volt. That switch-off voltage depends also on the (use) of a diode to the battery. But surely a safe switch-off voltage can be set, e.g. in the middle position of the switch. After testing with the “computer diode” (barrier voltage 0,6 Volt) the circuit did not want to switch off at the highest voltage (14,5 V). Anyway: it switched off properly at the middle voltage (middle switch position, 14,2 V).

It is not a beginners circuit because you can damage your car battery when you let it switch off on a too high voltage and the aligning to the different voltages must be watched carefully and takes time.

Plus the fact that the resistors that decide about the switch-off are in the (very) low resistance range. So it could be that you must experiment with resistors in the 5-20 Ohm range to precisely get your switch-off moment with lead-acid batteries with slightly different properties, compared to the ones that I used.

By the way: I used 2 different lead-acid car batteries (40 Ah and 75 Ah – 12 Volt) during my experiments and all worked fine, so too much worries are not necessary.

You could get e.g. an old 12 V car battery for free in the dump and do your experiments in the precise aligning process. Of course that battery must be a little bit healthy, with a “dead” lead acid battery it is not possible to align everything properly.

The basic alignment can, by the way, be done without a lead-acid battery connected to the circuit. It can be done by connecting a + voltage (opposite to ground, minus) to the sense-line and very very slowly adding voltages via a separate power supply between 12 V and 15 Volt.

At the same time: connect a Voltmeter with 2 digits behind the comma (so 1/100 Volt) to the sense line (+ opposite to ground, minus) see and align when the Schmitt trigger switches off. When all is OK you will see that the Schmitt Trigger switches on very precise (1/100) voltages in this range (12-15 Volt) and this depends on the setting of the 470 K potentiomer.

Align that 470 K potentiometer carefully (going out off the middle position, slightly up or down) till you find the right 3 voltages where the charger switches off.

By the way: it is not difficult. The circuit works very properly and was thorough tested during the development the past weeks.

Be careful with 110 V or 230 V AC, it can be lethal. Make it impossible that you, during experiments, can touch a 110 V or 230 V wire by isolating all these wires properly with good quality PVC tape (preferred Coroplast tape) and/or blank silicon kit. Use tiewraps to fasten PVC tape isolations, it can slide off.
All the videos hat I have published on You Tube can be found via my Channel Trailer: Link is

In thematic order you can find these video’s under the “comments” section.
Important: to find all the links to the (+/-700) video’s on my YT Channel, select, in the comments section, “NEWEST FIRST”
My books about electronics are available via the website from “Lulu”, search for author “Ko Tilman” there. Link is https://www.lulu.com/shop/search.ep?keyWords=ko+tilman&type=
My books are also available via Barnes and Noble and via Amazon.
Regarding all my video’s: I constantly keep them actual, so the original video’s with the most recent information are always on YouTube. That is the source, and search there. When my video’s are reproduced or re-edited on other websites/channels you can not (!) be sure about the original content (=really working electronics) and important adaptations to the circuits. Be aware of that, I saw on the internet many of my circuits reproduced in a poor or even not proper way. I can not help that, sorry. Upload 22 August 2018.

Important: you can omit (bridge) the diode to the battery. It will switch off more easily, because the diode gives a voltage drop.
The problem could be that the “charge” led keeps lighting up when the circuit has already switched off.
…..
(“from” = “of”, sorry Dutch way of saying)

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