Issue with brand new battery install

I purchased the battery install kit, and had no problems as far as getting it installed. Followed the steps afterwards to properly charge it the first time around. I noticed at around 65% charge left, the battery level jumped down to 8% out of nowhere. Not really sure what happened but now I’m worried the battery isn’t any good.

Has anyone run into this problem before? The battery info says the battery is in good health so, not really sure what to think. Here is more info on the battery though:

Battery Information:

Model Information:

•   Serial Number: D8610************
•   Manufacturer: ifixit
•   Device Name: bq20z451
•   Pack Lot Code: 0
•   PCB Lot Code: 0
•   Firmware Version: 2
•   Hardware Revision: 00aa
•   Cell Revision: 2
•   Charge Information:
•   Charge Remaining (mAh): 1933
•   Fully Charged: No
•   Charging: Yes
•   Full Charge Capacity (mAh): 8890

  Health Information:

•   Cycle Count: 2
•   Condition: Normal
•   Battery Installed: Yes
•   Amperage (mA): 4104
•   Voltage (mV): 11678

I added the screenshot of coconut battery as well. I just realized this seems to be a common issue with Ifixit batteries, for whatever reason.