{"product_id":"evolve-maestro-e-book-11-replacement-battery-76v-6000mah-li-polymer","title":"Evolve Maestro E book 11 Compatible Battery 7.6V 6000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eEvolve Maestro E book 11 \/ Maestro Evolve 3 — 7.6V Li-Polymer Replacement Battery (UTL-4766133)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.6V, 6000mAh (45.6Wh) lithium-polymer cell replaces the original UTL-4766133 battery in the Evolve Maestro E book 11 and Maestro Evolve 3 notebooks. It fits the slim 296.20 × 83.30 × 5.20mm battery bay directly. Voltage and connector match the OEM spec so the BIOS recognises the new cell without additional configuration.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMaestro E book 11 and Maestro Evolve 3 compatibility:\u003c\/strong\u003e\n    Both models share the same 7.6V power rail, battery bay dimensions, and BMS connector pinout, which is why a single cell covers the pair. The EEPROM data on the replacement matches the OEM charge controller handshake, so Windows correctly identifies the battery on first boot.\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 a Maestro E book 11 unit. The BMS held a stable 7.6V nominal rail throughout, charge termination triggered cleanly at 8.7V, and the low-voltage cutoff activated without a hard crash to the board.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle recalibration on the Maestro E book 11:\u003c\/strong\u003e\n    After fitting this cell, run one complete discharge down to the hibernate cutoff, then charge uninterrupted to 100% before using the device again. 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\"\u003eBIOS reporting poor battery health immediately after fitting the UTL-4766133 replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Maestro E book 11 stores learned battery data in BIOS — cycle count, full-charge capacity, and wear level — from the old cell. When a new cell goes in, that stored data does not match the fresh chemistry, so BIOS flags the battery as worn or unknown. This is a firmware state, not a hardware fault with the replacement cell. Running one full discharge-to-hibernate followed by an uninterrupted charge to 100% gives the BIOS a clean data set to write against the new cell. After that single learn cycle, the health indicator should read normal.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMaestro E book 11 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 is still calibrated to the old cell's discharge curve. The percentage shown on screen stops matching actual cell voltage, and the laptop hits the low-voltage cutoff while the OS still shows charge remaining. It is not a fault with this cell. Run two to three full discharge-and-charge cycles without interruption to let the fuel gauge IC re-map its curve against the new 45.6Wh cell. After calibration, the shutdowns stop and the gauge tracks accurately down to the actual cutoff voltage of approximately 6.0V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409565843546,"sku":"BWCS-EMK110NB-1","price":88.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409565876314,"sku":"BWCS-EMK110NB-2","price":104.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409565909082,"sku":"BWCS-EMK110NB-3","price":115.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-EMK110NB-1.webp?v=1779580013","url":"https:\/\/batteryweb.com\/products\/evolve-maestro-e-book-11-replacement-battery-76v-6000mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}