{"product_id":"coolpad-8297-replacement-battery-37v-2000mah-li-ion","title":"Coolpad 8297 Compatible Battery 3.7V 2000mAh CPLD-329","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCoolpad 8297 \/ F1 Series — 3.7V Li-ion Replacement Battery (CPLD-329)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 2000mAh Li-ion cell replacing the original CPLD-329 and CPLD-352 batteries in Coolpad smartphones. It fits the 8297, 8297W, F1, and Dazen F1 Plus. Capacity is sourced from the product specification — 7.4Wh total energy.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e8297 and F1 platform fit:\u003c\/strong\u003e\n    The 8297, 8297W, F1, and Dazen F1 Plus share the same battery bay dimensions, connector pinout, and BMS handshake protocol. One cell covers all four devices 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 8297 platform. The BMS accepted the cell without a protection trip, and the fuel gauge IC initialised correctly on the first cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration 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 map the new cell's discharge curve before high-current charging pushes load into an uncalibrated state.\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 a fresh Coolpad 8297 cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA new cell in an older 8297 body can still shut down abruptly at 20–30% reported charge. The fuel gauge IC retains the degradation curve of the original battery and treats the new cell's voltage floor as a cutoff point. Under modem or screen load, the cell voltage drops faster than the stale curve predicts, triggering an emergency shutdown. One full discharge-to-5%-then-charge cycle forces the coulomb counter to relearn the actual capacity floor of the new cell.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eOS reporting wrong battery percentage after cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAfter fitting a new cell, the Android battery percentage may jump erratically or read 100% immediately after a short charge. The fuel gauge IC stores learned capacity data tied to the old cell's internal resistance profile. The new cell has a different impedance signature, so the stored lookup table is wrong from cycle one. Drain the phone to auto-shutdown, then charge uninterrupted to 100% — this forces a full coulomb counter recalibration against the replacement cell's actual discharge curve.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404283347034,"sku":"BWCS-CPF100SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404283379802,"sku":"BWCS-CPF100SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404283412570,"sku":"BWCS-CPF100SL-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CPF100SL-1.webp?v=1779369549","url":"https:\/\/batteryweb.com\/products\/coolpad-8297-replacement-battery-37v-2000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}