{"product_id":"samsung-np900x5n-k07hk-replacement-battery-115v-5700mah-li-polymer","title":"AA-PBTN6QB Samsung NP900X5N-K07HK Compatible Battery 11.5V 5700mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSamsung NP900X5N Series — 11.5V Li-Polymer Replacement Battery (AA-PBTN6QB)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 11.5V, 5700mAh (65.55Wh) Li-Polymer replacement battery for the Samsung Series 9 NP900X5N ultrabook. It fits the NP900X5N-K07HK, NT900X5N-K29S, NT900X5N-K59W, NT900X5N-L38W, and 72 additional NP900X5N variants. It replaces the OEM AA-PBTN6QB cell when the original can no longer hold a usable charge.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNP900X5N series compatibility:\u003c\/strong\u003e\n    All NP900X5N variants share the same battery bay, connector pinout, and BMS handshake protocol. The 11.5V three-cell Li-Polymer configuration matches the voltage rail the Series 9 mainboard expects. A mismatched voltage would prevent the BMS from completing the authentication handshake and the laptop would refuse to charge.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran the AA-PBTN6QB replacement through full charge and discharge cycles on NP900X5N hardware. The BMS completed handshake on first connection, charge current stepped down correctly at the 80% and 95% thresholds, and the cell held stable voltage through a CPU-plus-display load draw.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle calibration after install:\u003c\/strong\u003e\n    After fitting the new cell, run one full discharge to hibernate-cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle. Without it, Windows will report inflated or near-zero capacity until the fuel gauge IC has mapped the new cell's actual charge curve.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the NP900X5N shuts down between 20–30% after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the fuel gauge IC still holds the discharge curve of the old, degraded cell. Under combined CPU and display load, the new cell's voltage reads lower than the IC expects at that state-of-charge, and the BIOS triggers an emergency shutdown to protect the system. The fix is a full learn cycle: discharge to hibernate-cutoff without interruption, then charge to 100% with the lid closed. After two or three complete cycles, the IC recalibrates against the new cell's actual voltage curve and the early shutdowns stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting battery health as \"poor\" or \"replace now\" immediately after install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Series 9 BIOS reads health status from EEPROM data stored on the battery's protection circuit board — not from the cell's current capacity. A brand-new replacement cell carries factory EEPROM values that the BIOS hasn't yet validated against actual charge cycles, so it flags the battery as unknown or poor. Run the Samsung Battery Manager utility and initiate a battery learn cycle. After one complete discharge-to-hibernate and uninterrupted charge-to-100%, the BIOS rewrites the health register and the warning clears. If Samsung Battery Manager is not installed, download it directly from Samsung's support page for the NP900X5N.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409561550938,"sku":"BWCS-SMN900NB-1","price":98.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409561583706,"sku":"BWCS-SMN900NB-2","price":116.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409561616474,"sku":"BWCS-SMN900NB-3","price":129.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SMN900NB-1.webp?v=1779580030","url":"https:\/\/batteryweb.com\/products\/samsung-np900x5n-k07hk-replacement-battery-115v-5700mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}