Laptop's new battery odd behaviour!

I contacted the seller and he said the battery is ok and can't be replaced under warranty. I think it's a calibration issue, can I still do something to calibrate the battery. I tried hp diagnostics but it still shuts down at 45%, won't go to 0.

@ehtisham65380 check this guide Battery Calibration for the calibration. PErsonally I do not like the answer you got from the seller, but they have the power. Do yourself a favor and download one of the free battery health programs like BatteryInfoView and check the specs of your battery. Let us know what it shows. The battery market is riddled with fakes and frauds and it is best to purchase from known sellers only. Stay away from places like ebay, amazon, Alibaba for batteries.

This is what I am getting on BattertyInfoView:-

Description Value

Battery Name Primary

Manufacture Name Hewlett-Packard

Serial Number

Manufacture Date

Power State Discharging

Current Capacity (in %) 71.5%

Current Capacity Value 23,834 mWh

Full Charged Capacity 33,318 mWh

Designed Capacity 33,318 mWh

Battery Health 100.0%

Voltage 7,043 millivolts

Charge/Discharge Rate -11,613 milliwatts

Chemistry Lithium Ion

Low Battery Capacity (1) 2,356 mWh

Low Battery Capacity (2) 4,028 mWh

Critical Bias

Number of charge/discharge cycles 0

Battery Temperature

Remaining battery time for the current activity (Estimated)

Full battery time for the current activity (Estimated)

Remaining time for charging the battery (Estimated)

Total time for charging the battery (Estimated)

Its showing OK even by checking on Command Prompt, but the scenario is getting worse now its shutting down at 60%. The percentage is increasing everytime I check if it shuts or not. One more thing I would like to add is that, the laptop lags when the battery is close to shutting down. Like previously it lagged at 30% and the speed would be normal again when I plug in the charger.

@ehtisham65380 yes, it would do that. I am sorry to tell you but I do believe that this is a battery issue. I would suggest you try a different one from a different and reputable seller.