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 ^^

So I just had this job interview with a "startup" (side note: who the fuck still calls limping companies "startups" in 2024? That is sooooo 2010s).

There was this tattooed and very pale girl (you just know the vibe), the mandatory Norse bearded tall guy and the balding, "I'm-in-my-fifties-but-I-am-not-a-square, maaan" sleasy-looking white guy in a button up shirt but no suit jacket. The whole stereotypes gang came looking for their missing nerdy Indian.

The sleasy bloke goes on and on on a looong tirade on how they're "a tech innovation academy", how they "move fast and break things" and they "run smoking hot", so that "long nights are to be expected".
So, they usual red-flagging shit.

Then they all went on a "but we're not like all those companies that look exactly like us" word salad about "sustainability and a healthy work life balance", with their "highest value" being "the utmost respect at all times". I'm nodding my head at the meaningless splurge until they fart out the sentence "for example, cussing while talking with colleagues is a fireable offence".

If some hustling enterprise rather prefers a posh working environment, one can adapt to such circumstances. Provided, of course, that said enterprise adheres to the administrative coherence expected from a culturally refined institution. Mostly by compliance, from the leadership, to a rigidly predictable working schedule.

Now, if the bloody curs want coder dogs that work assfucking hours with a shit eating grin, they better swallow our fucking sailor mouths. Fuck, I've done twenty hour shifts getting my ass kicked in dark startup fisting/rush rooms. If unable to yell at any blabbering cocksucker to go stick his fucking opinions up the bitch who crapped him, then I ain't gonna bloody be there.

TL;DR they can either have a "utmost respect" working environment XOR a "fast and hot" daily hustle.

After they crapped out that oxymoron I could barely hold myself to avoid saying "sorry, I do not partake in any of the psychedelics you must be on".
On to the next interviews!

Guys. Guys. Guys.

I went to sleep last night, after hunting a bug the whole day that showed up towards the end of my simulations (after several hours of simulations) and that crashed my program.

The crash was due to a bounds error in a fixed size vector, that worked on all the other thousands of iterations but for some reason randomly crapped out late into the sim. So I gave up and went to sleep.

Booted up my program today, 10x speed gain and no bug. Please send help. My brain is playing games with me, I'm sure. This shouldn't happen. :(

Holy shit has anyone ever had to use Borland Starteam? Fuck this piece of utter dogshit. I've lost count of the amount of times this POS has crapped out on me. I can't go a single day without having to kill it with the ctrl-alt-delete as it locks up for the thousandth time.

It constantly gets itself out of sync, telling me files are modified only for an 'update status' or comparison to reveal that fucking nothing has changed.

And you can't search the comment history past the last commit? Are you fucking serious? How the actual fuck is anyone supposed to work with this? It's not even like thats a difficult task. I can see the damn commit history right there so why the fuck can't I search its comments?

Probably the most frustrating piece of software i've ever used.

Update: It knows. It listens. It's not working at all now. This is my punishment for criticising it. The software is cursed.

Decide to move to docker for windows from toolbox. Worked well until vpn/s-tunnel all crapped out.
Found out about hyperv, default ethernet, HNS, windows DNS etc etc getting confused.
Removed docker and hyper v, back to working again.
Interface index for adapter selection , really ?

Alright, so i've just finished debugging my laptop. I planned to do some school project however the screen of my laptop suddenly decided i had something else to do and went dark on me. Took it apart, sprayed the hinges a couple of times with some conductor fluid in the hopes it would work again and sure enough it sort of works now.

I really hope it won't crap out on my tomorrow otherwise it'll be time to find a way to get a new laptop..