• HP Probook 6550B no battery detect

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#1 HP Probook 6550B no battery detect


by cygron 8 February 2024, 07:47
Model : HP Probook 6550B
Board id : 6050a2326601-MB-A02-001

Laptop can't open with battery. Show windows in No Battery Detect. Not charging. Need help.

Pin 1,2 - 0.2V (Without Battery) / 10.8 (With Battery)
Pin 3,4 - 3.1V (With or Without Battery)
Pin 5 - 0V (With or Without Battery)
Pin 6 - 5V (With or Without Battery)

Re: HP Probook 6550B no battery detect


by Google Adsense [BOT] 8 February 2024, 07:47

#2 Re: HP Probook 6550B no battery detect


by matic 9 February 2024, 17:37
Hello!

Measure the voltages to ground on pins 1, 4, 8 of transistors Q10, Q13 with the battery connected only (without power supply).

#3 Re: HP Probook 6550B no battery detect


by cygron 10 February 2024, 09:28
Q10 pins
Pin 1 - 10.7V
Pin 4 - 10.29V
Pin 8 - 10.8V

Q13 pins
Pin 1 - 10.8V
Pin 4 - 0V
Pin 8 - 10.8V

#4 Re: HP Probook 6550B no battery detect


by matic 11 February 2024, 20:37
Measure the voltages to ground on pins 8, 17 of chip U2 with the battery connected only (without power supply).

Re: HP Probook 6550B no battery detect


by Google Adsense [BOT] 11 February 2024, 20:37
This topic is marked as ARCHIVAL. Please only reply if your message contains the solution (Terms and Conditions p. 12.1).

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