{"product_id":"alta-calidad-b10-replacement-battery-37v-1800mah-li-ion","title":"Alta Calidad B10 3.7V Replacement Battery 1800mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAlta Calidad Coolpad B10 — 3.7V Li-ion Replacement Battery (JLY15050100001)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1800mAh Li-ion replacement battery for the Coolpad B10 smartphone. It fits the original battery slot and connects to the B10's charge IC using the same pin layout as the factory cell. Capacity is 1800mAh (6.66Wh), matching the OEM specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCoolpad B10 fit:\u003c\/strong\u003e\n    The B10 uses a 3.7V single-cell Li-ion architecture with a dedicated fuel gauge IC that communicates charge state to the OS. This replacement cell matches the voltage profile and connector pinout that the B10's BMS expects.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge cycles on a B10 unit. The BMS accepted the cell without error flags, and the charge IC reached full cutoff voltage at 4.2V as expected for this chemistry.\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 B10 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe B10's fuel gauge IC builds a discharge model based on the old cell's impedance and capacity curve. When a new cell goes in, that model is still calibrated to the worn cell. The OS reads the coulomb counter data and displays percentages that don't match the actual state of charge. One full discharge down to auto-shutoff followed by an uninterrupted charge to 100% resets the reference points and brings the percentage display back into line.\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 or display pulls a current spike and the cell voltage drops below the BMS low-voltage cutoff threshold — typically around 3.0V under load — even though the fuel gauge still shows charge remaining. A new cell with an uncalibrated fuel gauge IC is especially prone to this during the first few cycles. Run the phone through two full discharge-to-shutoff cycles without interruption. After those cycles, the coulomb counter recalibrates and the cutoff behaviour stabilises.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404129632346,"sku":"BWCS-CBS208SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404129665114,"sku":"BWCS-CBS208SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404129697882,"sku":"BWCS-CBS208SL-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CBS208SL-1.webp?v=1779369037","url":"https:\/\/batteryweb.com\/products\/alta-calidad-b10-replacement-battery-37v-1800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}