New 75 w magsafe charger and 60 w,"L"-style connector, new third party battery after changing from a completely rundown old one, all normal resets has been performed, electrical connections cleaned. LED goes amber for a few secs, the green. "X" over batt symbol in menu.
When connected to AC, computer on, I removed battery, put it back on immediately, then it charges with amber LED for 5-10 minutes, "X" changes to normal charging symbol in menuline, percentage going up to 5-10 %, then LED goes green, charging stops, "X" reappears. Performing this action 5-10 times ends up with abttery fully charged shown i menuline AND LEDs on physical battery.
THEN, operating from battery only, charge goes normally and slowly down to app 80% after app 20 mins, then computer shuts down without warning.
Now, this is one for the books, ai?
Hope, someone can do magic. searched for hours, lots of related problems with this charger and / or batteries, but found no working solutions and no other descriptions of xcactly same problem.
Thanks in advance.
HF
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