{"product_id":"jumper-ezbook-x1-replacement-battery-76v-3300mah-li-polymer","title":"Jumper Ezbook X1 Replacement Battery 7.6V 3300mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eJumper Ezbook X1 — 7.6V Li-Polymer Replacement Battery (2666144)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.6V, 3300mAh (25.08Wh) Li-Polymer cell for the Jumper Ezbook X1 ultrabook. It replaces OEM part numbers 2666144 and H-30137162. If the original cell has degraded or failed entirely, this is the direct swap.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEzbook X1 fitment:\u003c\/strong\u003e\n    The X1 uses a flat Li-Polymer pack at 7.6V nominal, matched to the board's charge controller and BMS handshake. This cell meets that voltage rail and connector spec. Fitting a different voltage pack will trip the BMS immediately.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through full charge and discharge on the Ezbook X1 platform. The BMS handshake completed without fault codes, and the charge controller accepted the cell without requiring a firmware bypass.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration on the Ezbook X1:\u003c\/strong\u003e\n    After fitting, run one full discharge to hibernate-cutoff — let the laptop shut itself down — then charge uninterrupted to 100%. This resets the BIOS battery learn cycle. Skip this step and the health indicator will likely show a false warning for weeks.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Ezbook X1 BIOS reports poor battery health after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Ezbook X1 stores battery health data in EEPROM tied to the original cell. When a new cell is installed, that stored data does not reset automatically — the BIOS compares current readings against stale figures and flags a health warning. This is not a fault with the replacement cell. Running one complete discharge-to-cutoff and uninterrupted charge-to-100% gives the BIOS a fresh data point. After one to two full cycles, the health status clears.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eEzbook X1 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 was trained on the old, degraded cell and misjudges where the voltage cliff sits on the new one. Under combined CPU and display load, the actual cell voltage drops faster than the gauge predicts, and the protection circuit cuts power before the displayed percentage reaches zero. Let the laptop discharge fully to hibernate-cutoff twice in a row — after those two calibration cycles, the gauge reading and actual cutoff will align. Target resting voltage after a full charge should read 8.55–8.7V at the battery terminals.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409591042138,"sku":"BWCS-TLF500NB-1","price":59.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409591074906,"sku":"BWCS-TLF500NB-2","price":69.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409591107674,"sku":"BWCS-TLF500NB-3","price":77.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-TLF500NB-1.webp?v=1779580146","url":"https:\/\/batteryweb.com\/products\/jumper-ezbook-x1-replacement-battery-76v-3300mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}