{"product_id":"boostmobile-milano-replacement-battery-37v-1400mah-li-ion","title":"SCP-41LBPS BoostMobile Milano Replacement Battery 3.7V 1400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBoostMobile Milano C5120 — 3.7V Li-ion Replacement Battery (SCP-41LBPS)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V Li-ion cell replaces the original battery in the BoostMobile Milano and C5120 smartphones. Capacity is 1400mAh (5.18Wh), matching OEM part numbers SCP-41LBPS and SCP-42LBPS. It restores power to calls, messaging, and apps on a degraded or failed original cell.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMilano and C5120 compatibility:\u003c\/strong\u003e\n    Both model designations share the same battery bay dimensions, connector pinout, and BMS handshake protocol — this cell fits either variant without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through full charge and discharge cycles on the Milano platform. The BMS accepted the cell without error flags, and charge termination triggered correctly at 4.2V.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\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 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\"\u003eWhy the Milano reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Milano uses a fuel gauge IC that builds its charge model against the original cell's impedance and discharge curve. When you install a new cell, that model no longer matches reality, so the percentage readout drifts. The IC needs one full discharge-to-charge cycle to re-map the coulomb counter against the new cell. Until that cycle completes, percentage jumps and inaccurate readings are expected — not a fault with the replacement cell.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% remaining on the replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the modem or display draws a high current spike and the cell voltage drops below the BMS cutoff threshold — even though the fuel gauge still shows charge remaining. The fuel gauge IC is reading an uncalibrated curve and overestimates remaining capacity. Complete one full uninterrupted discharge cycle down to automatic shutoff, then charge to 100% without interruption. After that cycle, the coulomb counter resets and the shutdown-under-load behaviour typically resolves.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405048643674,"sku":"BWCS-KYC512SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405048676442,"sku":"BWCS-KYC512SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405048709210,"sku":"BWCS-KYC512SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-KYC512SL-1.webp?v=1779369883","url":"https:\/\/batteryweb.com\/products\/boostmobile-milano-replacement-battery-37v-1400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}