{"product_id":"meilan-note-5-replacement-battery-385v-4000mah-li-polymer","title":"Meilan Note 5 Replacement Battery 3.85V 4000mAh Li-Polymer","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMeilan Note 5 — 3.85V Li-Polymer Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.85V, 4000mAh Li-Polymer replacement battery for the Meilan Note 5 smartphone. It slots into the Note 5 to restore power capacity when the original cell has degraded. Capacity is 15.4Wh, matching the factory specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNote 5 cell compatibility:\u003c\/strong\u003e\n    The Note 5 uses a fixed 3.85V Li-Polymer cell with a specific footprint — 82.10 x 62.60 x 4.45mm. That physical profile determines connector placement and BMS pin alignment. Any cell outside those tolerances will not seat correctly against the charge IC board.\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 Note 5 platform. The BMS accepted the handshake without fault codes, and the charge IC stepped through its CC-CV profile without thermal events at full 4000mAh load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle calibration tip:\u003c\/strong\u003e\n    On first use after installation, disable fast charging for one complete discharge-charge cycle. This lets the fuel gauge IC recalibrate against the new cell's discharge curve before high-current charging pushes load 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 Note 5 after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the fuel gauge IC was calibrated to the old cell's voltage-to-capacity curve. A fresh 4000mAh cell has a steeper voltage cliff under modem and display load than a worn cell. When the phone demands current during LTE activity or screen-on, the new cell's terminal voltage drops below the shutdown threshold faster than the IC expects — so the phone cuts out even though the reported percentage looks safe. Running one full discharge to 3.40V and a full charge cycle resets the coulomb counter and corrects the curve. After that cycle, the shutdown behaviour normalises.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDevice not powering on after the replacement cell sat in storage\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eLi-Polymer cells self-discharge in storage, and below roughly 2.5V per cell the BMS enters lockout to prevent damage. A cell in lockout will not respond to a normal charger — the phone shows nothing on screen. To recover it, connect the phone to a 5V charger and leave it for 15–20 minutes without pressing the power button. The charge IC trickle-charges the cell from lockout back above the 2.9V recovery threshold. Once the BMS exits lockout, a normal boot becomes possible.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43392085786714,"sku":"BWCS-MX621XL-1","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43392085819482,"sku":"BWCS-MX621XL-2","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43392085852250,"sku":"BWCS-MX621XL-3","price":30.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MX621XL-1.webp?v=1779143685","url":"https:\/\/batteryweb.com\/products\/meilan-note-5-replacement-battery-385v-4000mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}