Long rant ahead. Should take about 2-3 minutes to read. So feel free to refill your cup of coffee and take a seat :)

It turns out that the battery in my new Nexus 6P is almost dead. Well not that I didn't expect that, the seller even explicitly put that in the product page. But it got me thinking.. why? Lithium batteries are often good for some 10k charges, meaning that they could last almost 30 years when charged every day! They'd outlive an entire generation of people!

Then I took a look at the USB-C wall charger that Huawei delivered with this thing. A 5V 3A brick. When I saw that, I immediately realized.. aah, that's why this battery crapped out after a mere 2 years.

See, while batteries are often advertised as capable of several amps (like 7A with my LiitoKala 18650 batteries that I often use in projects), that's only the current that they can safely take or deliver without blowing up. The manufacturer doesn't make this current rating with longevity in mind. It's the absolute maximum in current that a given battery can safely handle.

The longevity on the other hand directly depends on the demand that's placed on the battery. 500mA which is standard USB 2.0 rating or 1A which is standard USB 3.0 rating, no sweat. The battery will live for at least a decade of daily charges and discharges like that no problem.

But when you start shoving 3A continuous into a battery, that's when it will suffer. Imagine that your current workload is 500mA and suddenly you get shoved 6 times that work upon you. How long would you last?

Oh and not only the current is a problem, I suspect that it also overvolts the battery to maintain a constant current all the way till the end. When I charged my lithium cells with my lab bench power supply, the battery would only take a few milliamps when it got close to the supply voltage. Quick bit of knowledge: lithium cells are charged at constant current first, then when the current drops below that, it continues at constant voltage - usually 4.2 or 4.35V depending on the battery. So you'd set your lab bench power supply at 4.2V 500mA. But in that constant voltage mode, as the battery's voltage and the supply's voltage equalize, the current drops because the voltage difference becomes lower. Remember, voltage is what causes current to flow. Overvolting at the supply to stay in constant current mode all the way till the end speeds this process up but can be dangerous and requires constant monitoring of the battery voltage.

So, why does Huawei and a bunch of other manufacturers make these 3A power chargers? Well first it's because consumer demands ever more, regardless of the fact that they can just charge at 500mA for the night (8h of sleep) and charge a 4000mAh battery from 0 to 100% no problem. Secondly it's because sometimes you need that little bit of extra juice fast, like when you forgot to plug the damn thing in and you've got only 30 minutes in the morning to pour some charge into it.

But people use those damn fucking things even when they go to bed, making that 3A torture a fucking standard process!! And then they complain that their batteries go to shit?!

Hopefully this now made you realize that the fast charger shouldn't be used as a regular charger ^^

This happend to me around 2 weeks ago. For some reason, I decied to post this now.

I won the lottery, yey! I mean, bot really, but I am <19yo student, "less than junior dev" in my office, but sonce I am the only one who is capable of working with hardware, I was working month back as a sysadmin for a few days. Our last sysadmin was really good working but really, really toxic guy, so he got fired on a spot after argument with some manager or whatever, no big deal, we could have another guy hired in a week. But, our backup server literally was on fire, all data probably dead because bad capacitor or whatever. This was our only backup of everything at the time. Everyone in full fucking panic mode, we had literally no other working HW we could use for backup, but then comes me, intern employed on his first dev job for 3 months. That day I bought some HW for my own personal server at home (Intel NUC with some Celeron, 4GB DDR4 RAM and two 240GB SSDs for RAID 1. My manager asked everyone in the office for sollution how to survive next 4 days before new server arrives. People there had no idea what tk do and no knowedgle about HW, I just came from a break and offered my components for a week, since there was noone else who can work with HW, servers and stuff like this, manager offered me $500+HW cost if I, random intern, can make it work. I installed Debian on that little PC, created RAID1 from both SSDs, installed MySQL server and mirrored GIT server from our last standing server (we had two before one of them went lit 🔥), made simple Python script to copy all data on that RAID, with some help of our database guy copied whole DB from production to this little computer and edited some PHP so every SQL request made on our server will run on that NUC too. Everything after ±2 hours worked perfectly. Untill a fucking PSU burned in our server and took RAID controller with him in sillicon heaven next night, so we could not access any data unltill we got a new one. Thanks to every god out there, I was able to create software RAID from survived HDDs on our production server and copy all data from that NUC on the servers software RAID and make it working at 3 AM in the night before an exam 😂. Without this, we would be next ±40 hours without aerver running and we might loose soke of our data and customers. So my little skill with Linux, Python, MySQL and most importantly my NUC hardware I got that day running as a backup server saved maybe whole company 😂.
Btw, guess who is now employee of the year with $2500 bonus? 😀
Sorry for bragging and log post, but I was so lucky an so happy when everything worked out, good luck to all sysadmins out there! 👍

TL:DR: Random intern saved company and made some money 😂

Hey guys,

this rant will be long again. I'm sorry for any grammar errors or something like that, english isn't my native language. Furthermore I'm actually very sad and not in a good mood.

Why? What happened? Some of you may already know - I'm doing my apprenticeship / education in a smal company.
There I'm learning a lot, I'm developing awesome features directly for the clients, experience of which other in my age (I'm only 19 years old) can only dream.
Working in such a small company is very exhausting, but I love my job, I love programming. I turned my hobby into a profession and I'm very proud of it.
But then there are moments like the last time, when I had to present something for a client - the first presentation was good, the last was a disaster, nothing worked - but I learned from it.

But this time everything is worse than bad - I mean really, really worse than bad.

I've worked the whole week on a cool new feature - I've done everything that it works yesterday, that everything gets done before the deadline of yesterday.

To achieve this I've coded thursday till 10pm ! At home! Friday I tested the whole day everything to ensure that everything is working properly. I fixed several bugs and then at the end of the day everything seems to be working. Even my boss said that it looks good and he thinks that the rollout to all clients will become good and without any issues.

But unfortunately deceived.

Yesterday evening I wrote a long mail to my boss - with a "manual". He was very proud and said that he is confident that everything will work fine. He trusts me completly.

Then, this morning I received a mail from him - nothing works anymore - all clients have issues, everything stays blank - because I've forgotten to ensure that the new feature (a plugin) and its functionality is supported by the device (needs a installation).
First - I was very shoked - but in the same moment I thought - one moment - you've written an if statement, if the plugin is installed - so why the fuck should it broken everything?!
I looked instant to the code via git. This has to be a very bad joke from my boss I thought. But then I saw the fucking bug - I've written:
if(plugin) { // do shit }
but it has to be if(typeof plugin !== 'undefined')

I fucked up everything - due to this fucking mistake. This little piece of shit I've forgotten on one single line fucked up everything. I'm sorry for this mode of expression but I thought - no this can not be true - it must be a bad bad nightmare.
I've tested this so long, every scenario, everything. Worked till the night so it gets finished. No one, no one from my classmates would ever think of working so long. But I did it, because I love my job. I've implemented a check to ensure that the plugin is installed - but implemented it wrong - exactly this line which caused all the errors should prevent exactly this - what an irony of fate.

I've instantly called my boss and apologized for this mistake. The mistake can't be undone. My boss now has to go to all clients to fix it. This will be very expensive...

Oh my goodnes, I just cried.
I'm only working about half a year in this company - they trust me so much - but I'm not perfect - I make mistakes - like everyone else. This time my boss didn't looked over my code, didn't review it, because he trusted me completly - now this happens. I think this destroyed the trust :( I'm so sad.
He only said that we will talk on monday, how we can prevent such things in the feature..
Oh guys, I don't know - I've fucked up everything, we were so overhelmed that everything would work :(
Now I'm the looser who fucked up - because not testing enough - even when I tested it for days, even at home - worked at home - till the night - for free, for nothing - voluntary.

This is the thanks for that.
Thousand good things - but one mistake and you're the little asshole. You - a 19 year old guy, which works since 6 months in a company. A boss which trusts you and don't look over your code. One line which should prevent crashing, crashed everything.

I'm sorry that this rant is so long, I just need to talk to you guys because I'm so sad. Again. This has happend to frequently lately.

i don't think that i'm having a burnout but i think that i'm maybe not so far away from it... several people, including friends, my therapist and also a colleague, told me they see me at risk of sliding into a real burnout.

i've known this for longer that i have a crappy work life balance. the habit of making work the most important part of my own life. thinking about work even in my private time, when i fall asleep, when i wake up in the night or in the morning. the tendency to think about problems, plans, coworkers, not being able to quit work mentally. the idea that i have to prove to everybody at work that i'm awesome. the feeling that, after a work day, i'm just "waiting" at home for the next day, in idle mode, so i can continue working on a problem (like a bug) that's occupying my whole mind. and at the same time, feeling totally empty after work, having no energy. i've lost interest and quit several hobbies in the last two years that once were important for me. and i think one important reason is that i didn't have any mental energy left to deal with that.

another factor for this development was also the pandemic for sure, because for some time, i had no real social life except for that at work.
but more important is probably that i find my job most of the time really fun and am highly motivated. i have the tendency to say yes to everything and to really commit to and own the problems that are handed to me. (right now, however i feel like there's not much motivation left)
then again there is the feeling that what i do is never good enough, i have little self confidence in my own abilities as a software engineer. there's a big discrepancy between how i myself perceive my work and how other people do (not only at work). on a rational level, i know that what i do is at least "good enough", otherwise i wouldn't have this job, and i wouldn't receive this amount of positive feedback from people. but it's hard to really deeply understand this thing, when there are deep-rooted beliefs like "only perfect is good enough" or "your colleagues will be disappointed and get a negative idea of you (and something bad will happen), if you don't give your best"... and there's also this idea that i have to be this super nerdy person who also codes in their free time, reads IT magazines and stuff, because only then i will fit this stereotype of a software developer, and only then i can be taken seriously and be good enough. no matter if this is fun for me or not.

anyway, right now i'm at a point in life where i'm realizing all this not only rationally, but with full emotional impact... :/ my life feels like it's gone stale and empty. i've lost creativity, warmth and human connection and that hurts a lot.

i'm trying to change my life.
one thing that really helps me right now is to talk with people who have (made) similar experiences. can you relate? if yes, how do / did you address those problems? i would really appreciate to hear your stories...

I just had such a forfilling moment.

Normally, i often (force myself) go to bed at night, after i worked on a project of mine, with these thought saying "oh man i wanted to get that feature done today" or "i want to finish this and that part of my code".I am sure everyone of you knows the feeling, when your brain communicates that you are just not done for today.

Today it was different. I got a project of mine working in it's first state, where i put much heart, love and time in.Just a few minutes before i finished for today i got my server responding the expected numbers(some kind of pin-code). It's a very easy system: Someone(at the time only me and my debug mode :3) on a android phone request a verification which is checked and processed by the server. The server creates a random six-digit number, returns it encoded to the client and sends an email to the user, which currently sends it in plain text(shame on me).
Yeah, the user enters the number and voilà
And of course, all the Pincodes can only be used once.
I got to bed with this feeling of luck and succes.

I hope tomorrow is going to be a productive day!

I am so lucky right now.

Have a good day everyone!

Any night, 1:30am, bedtime: "Yes! I can't WAIT for tomorrow to begin! I'm gonna make SO much progress on that personal project that I just KNOW is gonna change the world and make me a billionaire! My time is now!"

Next day, 9am, first call of the day: "Ugh, waking up SUUUUUCKS! But, fine, just gotta get through the workday, then it's beast mode time!"

5pm: "Ugh, that day SUCKED... meeting after meeting, constant interruptions for the few minutes I got to hack code, SO many emails, and hey, good day, only five new things pushed down from corporate to bang my head against! Feelings pretty mentally exhausted, but it's all good, I fortunately love this programming stuff, so first dinner, then a little exercise, spend some time with the family, and then it's time to COOOODE!"

10pm: "Ok, house is FINALLY quiet (fucking dog), just a little noise from my daughter staying up way too late again... kinda spent, but this project still excites me, and I may not get as much done as I was hoping, but fine, I can still make some tangible progress and that's what matters. Maybe just one last quick check of email, Reddit, make sure there's no new Hot Ones or Honest Trailers I gotta watch, update IDEA plugins and see what's new, then it's work time! Nothing can stop me now!"

Any night, 1:30am, bedtime: "SHIT! I GOT FUCK ALL DONE AGAIN! GO DAAAAAAAMN IIIIIT!!!!"

Fuck Night mode, I still use F.lux on all my 🍎 devices.