Acer Aspire S7-391-73541G Storm 12223-1 Nie ładuję oraz nie wykrywa baterii.

Hello!

Make sure the battery detection switch SW1 is activated (pressed).

N.1-2 2,77V ...this is voltage of the battery - standard voltage of working battery should be cca 7.5V ...it has two cells, 7.5/2=3.7V voltage of single cell...critical voltage for cell is around 3V...here you have 2.77/2=1.4V cell... after any single cell voltage drops below critical value, battery integrated charging ic blocks for security reasons charging (...in most cases) - and the battery is blocked/locked. Older batteries could be sometimes revived by precharging every single cell one by one to its minimal working voltage (need to open battery to access cells). Newer batteries are firmware blocked and need special tools to be unlocked/reset, else would not charge even after cells precharging/ballancing.
If you dont have such tools to directly diagnose battery, try at least some software based tools like BatteryInfoView to get more accurate info on battery itself and what is going on...especially charging current and actual voltage...look for any even minimal changes.

How about the post #2 ?

LukaszBsKrakow писал(а):I also desoldered it to rule out its damage, but there was no change.

This switch should be pressed all the time, otherwise the battery will not work. You can bridge it with a jump wire for testing purpose.

LukaszBsKrakow писал(а):I have a new charger, replace it?

So far there is no indication that the charger chip is damaged.

- Is the RTC battery good and connected to the board?
- Measure the voltages to ground on pins 1, 3 of diode D6002.
Diode D6002 pinout:

Remeasure the voltages to ground on all pins of battery connector with the power supply + battery connected.

LukaszBsKrakow писал(а):When Swi1 is pressed, 3.2V appears on pin 3 of the battery connector

LukaszBsKrakow писал(а):n.3 0V

Are you kidding? How many times do I've to tell you that the battery simply doesn't work without the switch SW1 pressed? Is it so hard to bridge the switch SW1 with a jump wire?

matic писал(а):This switch should be pressed all the time, otherwise the battery will not work. You can bridge it with a jump wire for testing purpose.

LukaszBsKrakow писал(а):EDIT:
[ Obrazek ]

What mess is this?

Please, follow the following procedure:
1) Remove this red wire.
2) Plug the battery to the board.
3) Solder a jump wire as marked in red in the following picture.
4) Plug the power supply to the board.
5) Remeasure the voltages to ground on all pins of battery connector.