Acer Aspire 5733 New Battery only charges up to 43%

Info: I'm using acer aspire 5733 (windows 8). I recently bought a new battery online that has a capacity of 112 Wh (which is double the original 48 Wh AS10D31 battery that the laptop came with). It came with the same voltage as the original one which is 10.8 V. Charger supplies 19 V 3.42 A 65W.

Problem: I cannot charge the new battery past 43% even after two days of charging. I tried to calibrate the battery by draining it all the way and uninstalling Microsoft ACPI compliant control but all attempts were to no avail.

Any suggestions/advice. Thanks!

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