DELL XPS 13 LA-B441P NOT CHARGING BATTERY
Test Admin (26 Jul 2025)
Battery not charging but display good
NO PS_ID VOLTAGE OR SIGNAL
FOUND DIODE BURST
FOUND PS_ID Track Open
TRACK FIXED, NOW CHARGING WELL
More Observation:
Rated 7.4V 41WH LI-ION BATTERY (9 WIRE)
R R Blue Yel gr wh br bk bk
7.8V 7.8V 3V 3V 0V 0V 0V GND GNF
While Charging {BATT 7.4V 41Wh}
BATT. 6.78V- 7.80V
PL304. 5.12V
PL301 3.3V
PSID 3V CONT..
Without Batt. 9.09V B+
DIODE VALUE AT JACK: WITHOUT POWER SOURCE PSID PIN 1023;DCIN 1384
After POWER ON: PSU 0.46A BOOT TEST BY USB PORT INIT PL601. 1.35V. DV 150 PL701. 1.8V. DV 24 PL501. 1.03V. DV 225 PL201. 7.8V DV 437 PL304. 5.12V DV 400 PL301 3,3V DV 287 CAUTION: MIND BACK SIDE WHOLE BOARD PACKING TAPE AND TAPE WITH CPU FRONT SIDE
DV TO REMEMBER PSID 1023 DCIN. 1384
Tip: SEE CHARGING PHASE WF ABOVE, SET RANGE 5V/250nS. MORE ON-TIME MORE CHARGING CURRENT,PROPER BACKUP
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