ON Battery  POSITIVE TERM MEASURE 7.68 V  and BATFET GATE 12.72V

ADP AMBER LED LIT CONT...

BATT BP02XL. rating  7.7V 4500mAh

 ADP PLUG GATE LOW FROM 12.72V to  5.71V FOR 1SEC AS BELOW WF ENABLE CHARGING FOR THE SAME TIME BUT AGAIN HIGH TO 12.72V DISABLING BATTERY CHARGE.

BY MULTIMETER TEST Pin14 OF  ISL88750 Found OPEN...Fixed

 NOW AMP METER DISPLAYS CURRENT 1.15AMP AND CHARGING   SHOWS OK .

PSU SHOWS  1.66A WITH BOOT  TEST USB INIT ALONGWITH BATTERY CHARGING.

UNDER NORMAL CHARGING CONDITION:

BATTERY VOLT 8.25V.

13.30V GATE VOLT

1.15AMP as WF BELOW: