Description
Product Information
- Item Condition: Brand New
- Color: Black / White
- Capacity: 4530 mAh / 66.9 Wh
- Output Voltage (Volts): 15.44 Volts
- Number of Cells:4 Cells
- Package Included: 1 x Battery for Samsung
- Warranty: 12 Months / 30-Day Return
Compatible Part Numbers (not all):
Samsung AA-PBRN4ZU,Samsung 1588-3366,Samsung BA43-00393A,Samsung 4ICP5/52/109
Compatible Model Series (partial list):
Samsung NP930QCG 950QCG 930XCJ 950XCJ,Samsung Galaxy Book Flex (NP930QCG),Samsung Galaxy Book Flex (NP950QCG),Samsung Galaxy Book Flex2 5G (NP930QCA),Samsung Galaxy Book Ion 13.3 (NP930XCJ),Samsung Galaxy Book Ion 15.6 (NP950XCJ)
Premium 66.9Wh Battery for Samsung Galaxy Book Flex & Ion Series
Restore the vibrant mobility of your QLED-equipped device with our AA-PBRN4ZU replacement battery. Specifically engineered for the flagship Galaxy Book Flex (2-in-1) and Galaxy Book Ion series, this 66.9Wh high-density battery delivers a stable 15.44V output. Whether you are using the 13.3″ or 15.6″ variant, this battery ensures your premium ultrabook maintains its all-day endurance for creative work and entertainment.
Technical Specifications
| Part Number | AA-PBRN4ZU / BA43-00393A |
| Voltage | 15.44 Volts |
| Capacity | 4530 mAh / 66.9 Wh |
| Battery Type | Lithium-ion Polymer |
| Condition | Brand New |
| Warranty | 12 Months / 30-Day Return |
Verified Model Compatibility
This battery is a dedicated fit for the Flex and Ion generation. Please cross-reference your model number below.
Fits Device Series:
- Galaxy Book Flex: NP930QCG, NP950QCG
- Galaxy Book Flex2 5G: NP930QCA
- Galaxy Book Ion: NP930XCJ (13.3″), NP950XCJ (15.6″)
- Additional Models: 930QCG, 950QCG, 930XCJ, 950XCJ
Compatible Part Numbers:
AA-PBRN4ZU | BA43-00393A | 4ICP5/52/109
Installation & Care Tips
- Internal Safety: This is an internal battery. Accessing it requires removing the bottom panel. Use a high-quality screwdriver and plastic pry tools to avoid damaging the premium aluminum or magnesium-lithium chassis.
- Precise Fitting: The Galaxy Book Ion and Flex series have extremely tight internal tolerances. Ensure the battery lies perfectly flat and the connector is securely seated before replacing the back cover.
- Initial Calibration: After installation, charge the battery to 100% and then allow it to discharge to 10% for the first 2-3 cycles. This synchronizes the Windows power management system with the new 15.44V cells.
Frequently Asked Questions
Q: Will this fit the newer Galaxy Book Pro or Book2 series?
A: No. The Pro and Book2/3/4 series use different battery part numbers (like AA-PBMN4VN). This AA-PBRN4ZU is specific to the original Flex and Ion generation.
Q: Is it safe for the Ion 15.6-inch model which has a second SSD slot?
A: Absolutely. This battery is designed to fit the 15.6″ Ion (NP950XCJ) without interfering with the secondary storage expansion slots.






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