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Dell Latitude 5280 does not charge the battery
Gast
#7086361
Hello, everyone I have a problem with the battery, I upload a picture of the mainboard I have an external power supply runs very well but unfortunately the battery is not charged Thank you very much
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Gast
#7086368
The encapsulated CR2032 cannot be charged. The main battery is only charged with original Dell power supply, which contains a one-wire ID chip. Check in diagnostics which power supply type is displayed.
Gast
#7086449
Thank you very much I had taken the wrong power supply once, from this time the battery is no longer charged
Gast
#7086467
maybe the wrong psu injected power into the one wire pin of the laptop. there should be a 1k resistor and a zener, maybe one of them is broken.
Gast
#7086471
tested a new battery?
Gast
#7086474
where should i look for in motherboard now?
Gast
#7086481
Dell schrieb: > where should i look for in motherboard now? Send it to the next recycling depot. You need a new laptop.
Gast
#7086509
if the laptop starts up normally but can't charge the battery, throw it away?? do you mean that?? :-)
Gast
#7086530
I found the chip I think it's burned out, you can't read it anymore there is a comparable diode PESD5V0U2BT
Gast
#7086532
file:///C:/Users/Test/Downloads/PESD5V0U2BT%20(1).pdf
Gast
#7086536
Gast
#7086561
My dell (older) has a unidirectional zener, are you sure you need a bidirectional type?
Gast
#7086611
yes i need one
Gast
#7086678
Dell schrieb: > if the laptop starts up normally but can't charge the battery, throw it > away?? > do you mean that?? :-) Yes I mean that. The board is not designed for repairing and I am pretty sure that you do neither have the required tools nor the know-how. And it is to old for the repair service of Dell. The burned ESD protection diode indicates that your computer was exposed to excessive overvoltage with enough energy to destroy the parts which the diode was not able to protect. The following damages are invisible. If you have several hundred euros to buy the required tools and lots of time, you might try to replace one part after the other. But I think you will get stuck quickly because you cannot buy the required spare parts. This diode is easy, but check the availability of the microchips. And also check the availability of their firmware, including tools to load the firmware. I fear that you will waste your money and time. Antwort schreiben |
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