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Ok.
Which DCin mosfets were replaced? PQ301 & PQ302 are both suspects.
I would expect the same voltage to be present on pin 32 as pin 23 on the charger IC. When you disconnect the battery - do you see around 9v on pin 23? With the battery, the voltage drops to ~5v?
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I replaced PQ100, PQ106, and PQ304.
With the battery, on contacts 23 and 32, about 5V appears at first, then drops to 0.67V.
The board automatically turned on from the battery, on the type-c tester - 5V.
ps
Before that, I took measurements with another battery that turned out to have no charge at all.
I took measurements at contacts 23 and 32 with a charged battery.
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I bought a Vostro 3400 motherboard (LA-K033P) to upgrade over my damaged Inspiron 5593 (LA-J091P) board. Everything else is ok except for the battery. This battery I am using now is already a replacement one since I disposed of the bloated original one. Back in the Inspiron 5593 motherboard, the battery charges fine and is identified just fine. However, with the upgraded motherboard, suddenly the replacement battery is labeled as "Not a dell battery". When I borrow a similar battery from my colleague (which did not have replacements yet), it is identified and charges just fine.
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Hello,
it's not a laptop/desktop related question but I figured that someone here will have the right knowledge.
At work we use a few Aldebaran(now Softbank/United Robotics group) Nao Robots which they use some custom 6S li-on battery packs.
Nao robots tends to draw from the battery even if they are shut down, and the BMS tends to be a little aggresive, if the pack stays on a turned off robot for 3 months it's gonna lock and will refuse to charge.
Now, I have noticed a few things.
The "dead" battery, while connected to charger and NOT Charging will... -
Hi
Acer A515-43
LA-H801P
Fail: Does not charge battery, has low voltaje on connector.
Laptop didn't want to turn on, only charge led blinked.
I found PQB5 (mosfet high battery charger) in short, voltaje in +12.6V_BATT was 19 v ...
I changed it, changed PQB6 too and now battery charger voltage is 4.4V but battery is 3 cell, 11.25v, then is very low to charging.
Laptop turns on without battery and works fine, but with battery turns on and turns off inmediately, I suspect battery bad but I don't know... -
Is there a way to externally charge a L19D3PDA battery from the laptop. I have a broken charging port on my laptop and am trying to find a way to charge the battery for it. I have been doing some research and I have found that there is a module, TP4056, that can be used to charge Li-ion batteries. It says it is used to charge single cell Li-ion batteries. The L19D3PDA battery is a three cell battery. Is it possible to use the module to charge my battery and it would just be very slow? Or would that be a bad idea. Is there a different kind of module I can use to charge my Li-ion three cell battery?... -
Hi guys I have this dell that with the battery charged it turns on correctly, but if I connect the charger I get the charging symbol but it doesn't charge the battery.
I found the shorted charger PU4401 ISL9538h that had pins 14 and 15 shorted and I replaced it. but it still doesn't charge.
I noticed 2 things:
1) without the battery connected if I connect the power supply, on the SDA and SCL pins of the battery I have 0V I measured the resistance with ground and it is very high, if I connect the battery I have 3v on the 2 lines.
2) if I try to turn it on without the battery...
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