820-01598 problem with battery

hello,
i have problem with battery on a2159 - 820-01598
i have replace info bat flex, battery is not detect
i have see problem link on pin 7 J6951 OL and i have jump directly to CD6660
i have replace cable info bat and battery detect but when i remove laptop stop
replace with new battery same problem
 

2informaticos

Administrator
Staff member
I can't find CD6660 in schematic.
Remove any jumper you made.
Solder together R6955 pads and test again the machine.
 
i have remove my jump and jump together R6955, battery is good detect (49%) and when i remove charger works perfect
only problem, not up to 50% and lab alim have only 0.2A
think need jump again?
you don't found CD6660 because it's CD660 sorry, i have before remove jump PIN 7 J6951 to CD660 and directly to R6955
 

2informaticos

Administrator
Staff member
CD660/1 not critical.
You should test with known good battery.
Or check your battery with dedicated tool, like NLBA1.
 
ok, i test with another bat because same with 2 battery
I have jump because pad (1) under CD660 have burn and contact is cut
it's for that i have jump directly PIN 1 R6955 to the pin 7 J6951 to CD660/1
you think that it is therefore not necessary that they be connected and only problem with battery correct?
 

2informaticos

Administrator
Staff member
Post Q7065/70 voltages; both charger and battery connected.
Are you using original charger?
Connect it directly to the laptop port (no USB-C meter).
 
Q7065 : line
PPVBAT_g3h_conn = 0.7V
CHGR_BGATE : 13V
PPVBAT_G3H_CHGR_R = 13V

Q7070 :
PPVBAT_G3H_CONN = 0v
SAVE_BAT_G = 0.7V
SAVE_BAT_S= 5.5V
 
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