{"product_id":"coolpad-rogue-4g-replacement-battery-38v-1500mah-li-polymer","title":"Coolpad Rogue 4G Compatible Battery CPLD-365 3.8V 1500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCoolpad Rogue 4G \/ 3320A — 3.8V Li-Polymer Replacement Battery (CPLD-365)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.8V, 1500mAh Li-Polymer replacement battery for the Coolpad Rogue 4G and 3320A smartphones. It replaces OEM part number CPLD-365. Fit this battery when the original cell no longer holds a charge, causes unexpected shutdowns, or fails to power the phone on.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRogue 4G and 3320A compatibility:\u003c\/strong\u003e\n    Both models share the same battery bay dimensions, 3.8V nominal voltage rail, and BMS connector pinout — one cell covers both. The physical footprint is 65.30 × 47.04 × 4.12mm, matching the OEM tray without modification.\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 Coolpad Rogue 4G unit. The BMS handshake completed on first connection, charge termination triggered correctly at 4.35V, and the fuel gauge IC accepted the new cell without throwing a fault.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle fuel gauge recalibration:\u003c\/strong\u003e\n    After fitting this cell, disable fast charging and run one complete discharge-to-charge cycle at standard rate. This lets the fuel gauge IC map the new cell's discharge curve before any high-current session pushes current into an uncalibrated profile.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Rogue 4G reports the wrong battery percentage after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Coolpad Rogue 4G uses a fuel gauge IC that builds its capacity model from accumulated charge and discharge data on the original cell. When you fit a new cell, that stored model no longer matches the actual discharge curve. The phone reads a voltage point and maps it to an old curve, so the percentage shown is off — sometimes by 15–20%. One full discharge-charge cycle at standard rate forces the IC to rebuild its coulomb counter baseline against the new cell. After that cycle, percentage accuracy returns to normal.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on the replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the modem radio or screen backlight draws a current spike and the cell voltage drops sharply — the BMS reads this as a low-voltage fault and cuts power before the displayed percentage reaches zero. It is a fuel gauge calibration problem, not a faulty battery. The new cell's actual voltage cliff sits at a different point than the IC expects from the old cell data. Run two full discharge-charge cycles at standard rate; once the coulomb counter recalibrates, the shutdown threshold aligns correctly and the phone stays on past 20%.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43392010420314,"sku":"BWCS-CPG332SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43392010453082,"sku":"BWCS-CPG332SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43392010485850,"sku":"BWCS-CPG332SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CPG332SL-1.webp?v=1779142906","url":"https:\/\/batteryweb.com\/products\/coolpad-rogue-4g-replacement-battery-38v-1500mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}