{"product_id":"trekstor-primebook-c11-replacement-battery-76v-4500mah-li-polymer","title":"TrekStor Primebook C11 Replacement Battery 7.6V 4500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTrekStor Primebook C11 — 7.6V Li-Polymer Replacement Battery (HW-3487265)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.6V, 4500mAh (34.2Wh) lithium-polymer replacement battery for the TrekStor Primebook C11 notebook. It matches the OEM part number HW-3487265 and fits the 11-inch Primebook C11 directly. Install it when the original cell no longer holds charge or fails to charge at all.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePrimebook C11 fitment:\u003c\/strong\u003e\n    The C11 uses a flat Li-Polymer pouch cell on a dedicated voltage rail matched to its charging IC. This replacement shares the same 7.6V nominal output, connector pinout, and physical dimensions (275.10 × 100.00 × 3.90mm) the board expects.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and discharge on the C11 platform. The BMS handshake completed without fault codes, and the charging IC accepted the cell through a full charge cycle to 100%.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle calibration on the Primebook C11:\u003c\/strong\u003e\n    After installation, run the laptop down to hibernate cutoff under normal use, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health or low-capacity warning that appears after every cell swap on this platform.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Primebook C11 reports poor battery health immediately after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Primebook C11 BIOS stores charge history and wear data from the previous cell in a battery learn table. When a new cell goes in, that table still reflects the old cell's degraded state. The system flags the new cell as poor health because it has no calibration data for it yet. Running one complete discharge-to-hibernate then a full uninterrupted charge gives the BIOS enough data to overwrite the old table and display accurate health status.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePrimebook C11 shutting down at 20–30% charge shown on screen\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC has not yet calibrated against the new cell's actual discharge curve. The gauge reads a percentage, but the cell voltage drops below the safe cutoff threshold before the displayed number reaches zero. The laptop shuts down to protect the cell, not because of a fault in the battery. Run two full discharge-to-hibernate and charge-to-100% cycles — after that the gauge tracks the real voltage curve and shutdowns at falsely high percentages stop.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409530781786,"sku":"BWCS-JUP313NB-1","price":53.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409530814554,"sku":"BWCS-JUP313NB-2","price":63.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409530847322,"sku":"BWCS-JUP313NB-3","price":70.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-JUP313NB-1.webp?v=1779579940","url":"https:\/\/batteryweb.com\/products\/trekstor-primebook-c11-replacement-battery-76v-4500mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}