It does come with a lifetime warranty... It explodes and kills you on the 3rd charge

@@j.cheeverloophole9029 Don't give fanatics any ideas.

@@j.cheeverloophole9029 Then you better check your laptop, Phone, Tablet, etc. because those batteries were created in the same country! Yeah, I know your comment was sarcasm. It does make you think how really safe any of these batteries actually are!

@yehoutube If a Telsa car battery pack goes faulty, well, I will see it from here!!!

The exact same powebank got recalled in The Netherlands for fire hazard....

Bruh.

wow.

~D A N K P O E T R Y~

"Wanting to hear poems I came; all I heard was shit Haikus fucking suck" ~ Sly Clop, Triple X

Don't post poetry Where you need shit

He didn't do a very good job, it looks like most of them got away!

He kept a close eye on the condition by taking frequent samples

Perfect second life for old laptop batteries. I’ve got a large collection myself, and they’re definitely perfect for those sorts of applications. [Some of them don’t do well for things like charging phones because the voltage drops heavily at high current, and most 5V output boards I’ve used will cut it off and leave a fair amount of power left when the voltage rebounds]

A pack of burgers

We got a good supplier who tried to push us some 1500mAh 18650s as 8000mAh we had never gotten batterys from before but good LEDs,COBs,project boards etc from, not knowing we test all cells on intake & test capacity before DIY/usage (never selling unless genuine samsungs) & they gave us 50pcs of fake marked/wrapped cells so we ended up with a few 1500mAh for torches/projects etc with a full refund (it helps if you can show fakes & they cant argue with pictures/data shown 0-100% charge capacity 🙈🙊)

While I don't have much of a problem with this concept *now*, this line of thinking has made things much harder for consumers. Years ago it was super easy to spot fakes, as they'd always have an absurd capacity rating of >4000mAh (eg those terrible "9900mAh" 18650s that are actually about 500mAh). While this was a problem for complete strangers to electronics, I was actually quite happy with the situation. Scammer vendors will always exist, you arent going to dispute them all into oblivion, but it meant that anyone who knew anything about the batteries used, could very easily know if a device was fake, with a simple rule (if its under 3500mAh, its probably real, if its over 3500mAh, its definitely fake). However people buying all the obvious fakes then demanding a refund due to them not meeting the physically impossible capacity rating, even though they knew full well it was fake before buying it, has led such vendors to give their units less absurd fake ratings, like these with 2600mAh. Now it's impossible to distinguish the real ones from the fakes since they'll both have a reasonable sounding capacity, and its only if you actually test them (which far fewer people will do) that you can know if you got duped. So congrats, you and people like you have helped make the market an absolute shitfest, where you can never know if powerbanks or batteries are fake or not until you receive them and test them yourself. Thanks.

Get over yourself you fucking socialist.

*stares angrily at you... mostly because he didn't think of this scam first*

@@dalehorton7748 This is the whiniest thing I've read in a while

Engrish

How hilariously bad Engrish is written at East Asian companies: Manager: "Hey, you! You said you know English (or went to conversation lessons), go write the copy for the English manual and packaging. What? Hire a native speaker? Do you have any idea how much that would cost compared to you doing it for free? Wait, did I say that out loud?" Japanese guy: OMG OMG I have no idea what I'm doing wait I'll just slap some English words together... (note: this is also how random English words end up in Japanese songs) Chinese guy: Eh, I'll run it through this translation site I found on Baidu. No one's gonna know the difference.

@@MMuraseofSandvich from my experience living in China, Baidu translate is actually low key better than Google's for Chinese and english

Happy very late birthday! Hah hah-

@Mr. Mosby it all went pretty smooth til getting trans off the dam pins were tough.

@Robert Baker How do you manage that? Their parents insist on bringing them out in public!

Going to assume the worst case scenarios and be generous with the assumptions. 700mA @ 5V means less than 980mA @ 3.6V Assuming 20% power loss due to conversion, would mean less than 1230mA from the battery. Assuming 20% tolerance on the capacity of the battery would mean the battery could be labelled as no more than 1540mA.

@@n-steam and then you double that number as the cell sees the maH going in when charging and then again going out when discharging. Boom 😁

@Против Глобал Pardon my ignorance, but how do you know it is a linear charger? Presence of an inductor suggests that bucking is intended. Unless it is meant for some kind of filtering which I doubt.

@Против Глобал Perhaps my basic physics is rusty here but if the input is at 3.6V and the output is at 5V even with a 100% efficiency in the output circuit the current of the output must be lower than the input or the power output would exceed the power input, the law of conservation of energy says no dice on this one you can't output 0.5W (100mA@5V) from a 0.36W (100mA@3.6V) input either the output current would have to lower or you need to draw more current from the battery to supply the missing joules of energy here. Though this is if one is measuring it by measuring the discharge capacity of the battery I guess are you only talking about if you measure the charge input to calculate the mAh value? So I guess it does depend if you are measuring the raw charge input or the real world usable capacity (output) though I would expect marketing to favour the former as thermodynamics guarantees the usable output capacity will always be lower due to losses in the energy conversions.

Yeah, they unsubscribe people all the time. Not sure why.

Especially since it’s sinking 1V or so when charging. I can’t see it taking more than 150mA or so.

How you doin that? How how you doin that?

cute suit head

@@Scrogan Put a scope on the inductor. I wouldn't be surprised if it's in fact operating as a buck converter during charging.

@@R3Cat Thanks!

Jes

HAAHAA

If definitely buy one if I saw that the shop had written that on it :)

Yeah, one of my friends was unaware that fakes existed and so was confused that her phone kept losing stuff. 64gb printed on it, the actual capacity was about 512mb.

strangely, he wasn't tempted to write "wil" before the "lies"

Handy for a backup battery topper on USB charged bike lights, maybe? I much prefer my Mobi brand pack - manages 2+ full recharges on my iphone and can even charge it faster than Messenger on a video call can drain it (older phone, video calls can drain a full charge in half an hour on 4G)

Yes. Scope please to show the detection logic!

Go for it!

Yes it would. The cables are wired differently, so if you used a normal USB cable the phone would charge from the power bank, but if you used an OTG cable the power bank would charge from the phone. I had to draw little direction arrows on the cables I carry around with me so I could remember which way the power would flow for each cable.

OTG cable?

Berkeloid That wiring is mostly for the data, controlling which end is the master. There is an increasing interest in having phones charge while acting as data master for headphones or speakers.

@@franglish9265 en.wikipedia.org/wiki/USB_On-The-Go

My wife has a tiny electric fan which is powered via USB-C from her phone. Clearly there's 5 volts coming out of the port. It seems like this power bank with it's simple circuitry would see that and start charging itself rather than charging the phone.

If you mean the two pin micro USB connectors they came from aliexpress and were described as 2 pin micro USB.

40mA to keep it awake.

The current rating also seems be to 1/2 to 3/4 if we are following the USB specification.

Efest is pretty bad at that. Their Samsung 30Q wrapper says 35A when the cell is only rated 15A continuous. You can definitely get away with quite a few extra amps on the rating, but advertising it as such is wreckless and misleading. Especially considering how little a lot of people know about li-ion safety.

@@william_2610 Ampking too. 20 amp cells with "35 - 45 amps" written on the wrap. It's insane because those are sold in vape stores. Most people with regulated devices never bother to learn any ohms law or battery safety/maintenance. With massively inflated ratings, they're gonna do themselves some damage one day.

@@archgirl They are already doing themselves damage, the fda (for Americans) has a page devoted to vape battery explosions. The following site has a compiled list of reported explosions; ecigone.com/featured/e-cigarette-explosions-comprehensive-list/

@@alexb.1320 It's just a shame that the explosions get attributed to vaping instead of human error with regards to li-ion batteries. These batteries will vent and go into thermal runaway in any device when misused, but the reports always blame vaping instead of the person incorrectly maintaining battery safety.

natural selection boosting devices ;) what's a missing hand, teeth and half your face......

At least we won’t have to worry about him sticking a fork into an outlet- wait...

no , it so problem, but the loadingtime will be longer

It's a purpose designed chip for power bank use.

It does need refreshed.

Current load?