[SOLVED] Laptop battery no charging

[chickmazta]

Laptop battery not charging

Guys I need some help. Could somebody please help me identify which pin of PU4 (BQ24725ARGRR) gives voltage to charge the battery. I've been reading the datasheet and can't identify which pin that gives charge. The battery is detected but still does not charge. I can power the laptop using the adapter. The battery is confirmed working. Laptop is an Acer Aspire E1-57. Hope someone could help thanks!

Here is the image of the battery circuitry. Someone had already attempted to repair this but It was brought to me instead. And also I attached a diagram which was given to me by somebody else. Thanks hope someone helps.

 

[mijatovic_86]

Here is a datasheet for that IC,
View attachment BQ24725ARGRR 1-4 Cell Li Battery SMBus Charge Controller.pdf

As i can see there, and on laptop SM the output is PHASE pin 19, you can see the signal BQ24725_LX outputing from pin 19, and the same label BQ24725_LX on the right before the filter coil.
That is on page 49 of manual that you supplied.

If i am wrong someone will correct me

 

[Musa_Jutt]

Thnkx. my problem solved..

 

[chickmazta]

I haven't thought that someone would still reply to my thread. The laptop is working but the battery is still not charging. I wonder if the battery is dead. It hasn't been used for 5 months after the laptop died, would that cause the battery to fail? Thanks!

 

[micro-hopless]

li-ion batteries will "die" if subjected to over discharge.

When the voltage drops below 2.5V per cell, some irreversible chemical reactions happen and the cell dies.

Same goes for all lithium based rechargeable batteries, only the voltage threshold might differ a bit.

 

[kalimuthu]

Try to install acpi driver or chip set controller driver . In your case better to replace battery.

 

[chickmazta]

Sorry for the late feedback but I did found out that the battery is dead. Replaced the battery and its working now, problem solved. This thread can now be mark as solved. thanks to everybody!

 

[suha52]

ye get a new 1 (both)