Replaced Battery queries!

Hi
Got my laptop’s battery replaced, have a few queries:

1. The new one displays only D5316, 6600 mAh……..the previous one displays U4873, Capacity 80WH……both 11.1V…….the replaced is working ok, with the previous settings displays approx time 1 hr and 59 mins approx when fully charged, but is discharging pretty quick 15% in 15 mins…..should I keep it or deliver it back?

2. This model online Google search shows that is manufactured for Inspirion and Latitude and not XPS series, but fits well?

3. Despite being fully charged with the laptop turned off, the battery icon next to hard drive on the LCD screen keeps blinking…….earlier when fully charged use to stop blinking?

4. Tips for calibrating and making the best for a new battery for a healthy life?

Hoping to hear from you experts,

Thanks.

Some screenshots using Batter Care.

After1 hour passed approx 43% left.

After1 hr 15 mins 33% 29 mins left.

Description Value
Battery Name DELL 00
Manufacture Name PS2
Serial Number 1
Manufacture Date
Power State Discharging
Current Capacity (in %) 18.4%
Current Capacity Value 12,510 mWh
Full Charged Capacity 67,954 mWh
Designed Capacity 73,260 mWh
Battery Wear Level 92.8%
Voltage 10,177 millivolts
Charge/Discharge Rate -41,570 milliwatts
Chemistry Lithium Ion
Low Battery Capacity (1) 2,220 mWh
Low Battery Capacity (2) 7,326 mWh
Critical Bias
Number of charge/discharge cycles 0
Battery Temperature
Remaining battery time for the current activity (Estimated) 00:19:27
Full battery time for the current activity (Estimated) 01:45:41
Remaining time for charging the battery (Estimated)
Total time for charging the battery (Estimated)