How a laptop battery with 0mAh capacity looks like and how to test this
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- čas přidán 26. 07. 2024
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Come on, people, when you send a laptop in for fixing, you should add some sweets at least 🍬 🤣👍
I'd send proper calibrated THC Gummies 😂
If i needed sorin to fix it and could add sweets without adding to the shipping, i would
Lol
Say hello to my little resistor 9:00
😀
I love this channel. I have been an electronic technician for 30 years and in each Sorin video I learn one more thing. In other channels they would have used an electronic super load with many numbers on the display and suddenly Sorin pulls out of his hat a large variable resistor from the analog era. Although I am a Spanish speaker, I will adopt the expression: "this sucks" 😀
I just put a thermal camera and the nlba battery tester on my wish list 😋
I come here for ``we have picture, ... lol" but I receive "that sucks" + new battery ... Thanks Sorin !!!
We also got some monitorizing.
Im a service technician for variable frequency drives company. I find your videos very educational and surprisingly therapeutic 😂 very well put together very impressed 👏
Most computer repair shops would have blindly replaced the battery hoping that fixes it, Sorin on the other hand does an extensive review of the battery and proves the battery is bad.
Wow, long time I haven't use and see such a useful type of load resistor, almost I forgot it...I remember I used it mainly as load for audio output amplifiers. Thanks Sorin!!!
glad to see my laptop model on your channel nice video like always
You can explain things very clearly. Thank you 👍
i made a resistor from a toaster heating wire :)
Thats genius !!!... I will make one incremental from 1 to 30ohms with 1ohm increments... madness !!!!
and I will pay 14 Euro from China...
Neah... I will remove for free from my wife hairdryer
Hello🤝I have always known that you are the best, the way you present electronics, how it all works is very accessible, I love what you do, thank you again for what you do for us, best regards👍👍👍👏👏👏👏👏👋👋👋👋👋👋
you're the best online teacher ❤
Really interesting Sorin I really enjoyed the video thank you 😊
Nice work Sorin.👌👌
I have plenty of old TV "Voltage Droppers" to test a battery with.
Checking a battery voltage without any load tells you very little, if the voltage drops underload
when the it has been fully charged means only one thing, the cells have low capacity.
This one had a very short life cycle, this can happen if the laptop is only used via the mains adaptor
and the battery is never charged then discharged.
battery chip has a bug thats why it reports FCC to be 0mAh. Cells definitely have some capacity, may be around 1000mAh or even bigger. Such bug could be fixed from Reset tab by entering non-zero FCC value to chip eeprom. Wonder why it was not even tried. This Renesas 045A20 chip is supported by your License type.
This is correct. As long as it outputs that 2amps it has some capacity. Sorin should redo this video.
He tested individual cells without the use.of the eeprom, and they dropped voltage like shit, just the battery is worn, if they didn't dropped voltage, he could try to fix corruption in firmware, but clearly it's not software problem this time
@@user-kr8tp3ko8z it is definitely firmware issue. Voltage drop at 2A was from 4.0 to 3.6 volts, which is 200 mR, such cells still could work. Not the best but enough for backup application. They definitely still has capacity much higher then 0mAh. Thats why it is chip software bug.
@@slami19 That is way too much voltage drop for only drawing 2 amps. The cells are bad.
2 amp discharge is not much for lipo for huge voltagedrop....cells are old
Ciao Sorin
I watch your videos not only for interesting repairs, but also for your talking slow and accurate.
This helps me learn English
Thanks twice
😉
Thank Sorin, enjoing learning alway more wacthing your video... best regards bye Francesco Timpano from Florence Italy
The battery is still active because it was most likely designed like that because it also serves as the cmos battery, the Super io is most likely keeping it a bit charged to act as cmos...same thing I've noticed with hp laptops with inbuilt batteries , even when the battery is disabled due to swelling or weak cells , the battery still retains some voltage to serve as cmos .
Thanks Sorin
nice video. thank you.
I have an Asus with the same characteristics, in my case it goes throug batteries very fast. I attribute this to the processor not being optimized. I recommend to lower maximum hertz at windows or at BIOS, or even undervolting (can be done on BIOS), so it does not eat batteries that fast.
When I watched the video this morning, I was thoughtful about the comment "very used battery" with only 187 cycles!!. I imagine that this equipment was running for a long time with the power adapter plugged in and only on very few occasions did it perform complete charge/discharge cycles, right?
Wish I had you close by to do my repairs, for I always replace the customer board of course when the issue is the board.
Laptop batterys are 4.35 or even 4.40V per cell. 13.05V for 3cell.
Hello Sorin, actually, you do have this charger plug, it is the same as the small blue HP one.
Recently, I made 2 videos (in English) with this very same model Asus FX571GT - one with missing component and one with shorted capacitor.
Cheers
We find out that 1V drop over 2A of current is a lot (for this battery) so what is the voltage drop we could expect on a functional battery?
All motherboards are nice !
bet your azz
But this is proper nice MB :)
I think probably used the laptop most of the time from the charger so that's why the battery with so low charging counts got so used. That's the reason why when I'm using my laptop on charger, I use software which limits the battery to be charged to 50%, and its way batter of the battery to be kept at that percentage if not used so much.
Yes i do this with lenovo vantage set it to 50-55% and every month or so discharge and charge to 100 as it goes down to 30% 2 mins later alert 6% which is weird
Hi sorin, interesting video, maybe this isn't your cup of tea (even if you are british...) but can you try to rebuild the battery ? It would be interesting if you replaced the cells or maybe if you explain why it isn't possible. Keep up the great work!
This seems very unusual..... battery manufacture date is 2020. Only 4 years ago but the battery has 0 capacity with only 187 charge cycles? That's impossible unless the battery is made from dog sh!t. If possible try to factory reset the eeprom in the battery and force it to back to new status. Or hand edit the eeprom values to make the 0 into 20000 or similar. Maybe the eeprom inside the battery got partially corrupted which happens often on many devices. My old Tecra A8 laptop original battery from 2009 still has around 400mA capacity present. Yes it's bad but it's not zero. My Samsung Galaxy S4 phone from 2014 still has the original battery and it works fine for about 2 weeks before it needs a charge. It looks like Asus and possibly other manufacturers are using inferior batteries on purpose to artifically end-of-life their products. Shame on them and likely will be common to see this with all battery-powered devices in the near future...
It's a battery made in China by someone suffering from the Covid which of course did not exist in China at the time
correct.
Pointless. Sorin placed the load directly on the (charged cells 4.0v each) and bypassed everything. The voltage drop PROVED the cells are bad. Probably a bad batch of cells.
he tested the cells individually , they are gone, high internal resistance, ....reseting fw will do nothing.
at least get real capacity. 180 cycle cells dont go to "ZERO".@@orange11squares
Today you forget to say "its a nice proper motherboard"... Thts a phrase fir good luck
Sir
thanks a lot, but i am asking why you are not using NLBA tool to unseal battery or check state ?
you know that you can try more with nlba tool.
thanks you sooooo much.
Sorin , very thank you for the "tutorial" .. there is a way to slow down the battery chargement acting on the current sensing resistor of the switching involved on battery charge? Asking this because I have a lenovowith a dual mosfet on b artery charger reaching 60 °c ( battery is charging at 2.5A )
. . . Laptop is rough as 🦵 legs blocked vents and cause overheating; battery cells drift apart iffy charge leveling cells, unless they are swollen, just need individual charging to full, then reset battery. . .
Could you have retried resetting the chip? Reset the firmware?
For the people saying he should do a firmware reset... Dont waste your time writing that comment. its obvious that the issue are the cells themselves. If you don't agree, go learn ohm's law.
You have missed or not noticed that the 3rd cell voltage wasn't dropping or supplying any amps when you loaded the battery with your discharching battery analyzer, please look into it.
I think 186 cycle is not that high or it is wrong.
Yeah quite unusual
just reset it using NLBA so it will fix the battery write capacity like 2000mah
1v at around 2a means around 2ohms which is like 0.6 ohms per cell and thats way too much for liio, think it should be around 10-30 mOhms per cell
Is it a replaced battery? I have replaced mine laptop battery dell 7559 for 2 times and the capacatie of battery is draining fast and daying. its not good. and I really like to have new good battery do you have tips where you can buy a good one? Type 357f9
I have a question to all viewers and to you Sorin: Where do you source your replacement batteries so you have a reliable replacement?
73's de ON70FF
What are Ohms of your resistor that you are used in the testing?
what max voltage can put to your resistor? :D
Most replacement battery are aftermarket even for they never look exactly if compare with the original. smh
I think blue pin HP will fit for this type
I have alot of batteries wich have not been used for a long time. I did watched your video how to revive them but I had no luck... The thing is I have one when I plug it in says 0% but says charging. I checked and its not charging. The capacity is like the original, but current capacity 0mAH. Can you do a viedo dedicated to batteries? Maby just for us no0bs
Sorin has done many videos about batteries and using the battery analyzer, if you have a lot of batteries it may be worth buying one.
why didnt u check PF status? may be a firmware issue
I have the same model in the repair, goes on and off again, still stuck.
Solder in some spare galaxy phone batteries cells you have laying around. Obviously following the usual precautions.
properly calibrated Samsung batteries?
What's that battery analyzer called and where can I order it?
Edit: I found it on eBay. It's called "NLBA1-PRO Laptop Battery Analyzer"... And the price is around $500! 😳
cпасибо..
i think some is corrupted in battery chip. makes no sense to have 0mah capacity. just need some sort of reset or reprogramming.
obviously u have not seen him put a load on it multiple times. cell did NOT discharge. so there IS capacity. cannot be 0.@@nicmate2543
NO the cells are completely worn out if they were in a phone it would last 2hrs from 100-0
would that equal 0 maH ?@@hannahtimson2526
Sorin way you not reset i have this folt on many batteries and when i was reset it its com to self
Hii sir I'm from India
Please send me your camera recording setup
Has this battery been ‘refurbished’ in a Chinese recycling factory?
This is weird, taking into consideration the fact that reader is reporting just 187 cycles. How can a battery drain and become useless so fast?...
Cycle count can't be correct, is not possible that is so worn down after only 187 cycles, if one cell was low it was from a cell problem, but all 3 cells are balanced, that kind of wear can not happen with only 187 cycles if it's an original Asus battery, may be a fake one, we don't know.
Maybe The cycles had been reset?
@@giovannifasoli89 Maybe
Why dont you use the mains power meater? Plug the charger to the meter and then you can see curent draw, and power...
Charger to the meter ??? Power meter what mean ? The multimeter ? The bench power supply ? Sorin can't do a speed current measurement because without the data pin of original power supply the battery won't charge... this mean: nothing to read... in this case the fast way was the one showed on the video... the other is to cut the track before first mosfet ( this is crazy ) place the multimeter ( switched to amperes ) to measure intensity ... or create a male/female power Jack adapter to measure externally the amperes leaving negative and datapin connected and + connected to the multimeter
@@laboratorioassembler what are you blabin about? relax man. just use a 240V power consumption meter and plug laptop charger into it. google power consumption meter
@@DankoHS have you tried to read 10 and 200 mA on a 220 power meter ? Please. We are talking about diagnosis the BQ chip state ... not how many amps are dropped in the battery... to see if the battery is not charging just power off the pc and touch the power supply with an hand.
187 cycles and died ?
my battery is also 0% always, after 71 cycles.
shitty battery or shitty charger ? please tell me
Battery is not used, it is shitty quality, why not say so?
You can explain things very clearly. Thank you 👍