{"product_id":"blu-life-onexl-replacement-battery-38v-3000mah-li-polymer","title":"BLU Life OneXL C866640282L Replacement Battery 3.8V 3000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBLU Life OneXL — 3.8V Li-Polymer Replacement Battery (C866640282L)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3000mAh Li-Polymer cell at 3.8V (11.4Wh) for the BLU Life OneXL smartphone and related models including the L050, LIFE XL, and Life One XL. It replaces OEM part numbers C866640282L and C866639282L. Swap this in when the original cell no longer holds a usable charge or causes unexpected shutdowns.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBLU Life OneXL series fit:\u003c\/strong\u003e\n    These models share the same battery bay dimensions (86.60 × 65.90 × 4.00mm), connector pinout, and charge IC handshake — the replacement cell seats and communicates with the board the same way the original does.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through a full discharge and charge sequence on the BLU platform. The BMS held charge termination correctly and did not trigger overcurrent cutoff during the modem-active draw spikes we ran.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle fuel gauge recalibration:\u003c\/strong\u003e\n    After installing this cell, disable fast charging and run one complete discharge down to auto-shutdown, then charge to 100% on standard current. This gives the fuel gauge IC one full reference cycle against the new cell's discharge curve before fast charge pushes high current into an uncalibrated cell.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on the BLU Life OneXL after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a voltage cliff issue, not a capacity fault. A fresh cell has a slightly different voltage-to-capacity curve than the aged cell the fuel gauge IC was calibrated against. When the screen or modem pulls a brief high-current burst, terminal voltage sags below the shutdown threshold even though the OS still reads 20–30% remaining. One full reference cycle — discharge to cutoff, charge to 100% on standard current — recalibrates the coulomb counter and eliminates the premature shutdown.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eOS percentage jumping erratically after installing the replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe fuel gauge IC on the BLU Life OneXL stores a learned model of the original cell's impedance and discharge slope. A new cell has different internal resistance, so the IC's state-of-charge estimates swing wide until it gathers real data. You will see percentage jump up or drop several points with no load change. Run two full discharge-to-100% cycles without interruption and the readings stabilise — the IC rewrites its reference model by the end of the second cycle.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43392103383130,"sku":"BWCS-QMZ800SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43392103415898,"sku":"BWCS-QMZ800SL-2","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43392103448666,"sku":"BWCS-QMZ800SL-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-QMZ800SL-1.webp?v=1779143815","url":"https:\/\/batteryweb.com\/products\/blu-life-onexl-replacement-battery-38v-3000mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}