{"product_id":"beeline-pro-replacement-battery-38v-2300mah-li-ion","title":"Beeline Pro 3.8V Replacement Battery 2300mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBeeline Pro — 3.8V Li-ion 2300mAh Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.8V Li-ion cell is a direct swap for the battery in the Beeline Pro smartphone. It carries 2300mAh (8.74Wh) of capacity and fits the original battery cavity at 66.60 × 50.20 × 5.30mm. Use it when the original cell no longer holds enough charge to get through a normal day.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBeeline Pro fit:\u003c\/strong\u003e\n    The Beeline Pro uses a 3.8V nominal Li-ion cell with a specific connector pinout and BMS handshake. This cell matches that voltage rail and physical footprint, so the phone's charge IC can communicate with it correctly.\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 a controlled bench rig. The BMS responded correctly at both the low-voltage cutoff threshold and the full-charge termination point, with no rogue current events during the charge ramp.\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 build a fresh discharge curve against the new cell before high-current charging pushes electrons into an uncalibrated counter.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Beeline Pro reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Beeline Pro uses a coulomb-counting fuel gauge IC that tracks charge by integrating current over time against a stored discharge curve. When you swap the physical cell, the IC still references the old curve — so the percentage it reports no longer maps accurately to the new cell's actual state of charge. The fix is one full uninterrupted discharge down to automatic shutdown, followed by a full charge to 100% without interruption. After that single cycle the fuel gauge recalibrates its endpoints and percentage reporting stabilises.\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 screen pulls a high instantaneous current and the cell voltage sags below the phone's hardware cutoff threshold — even though the fuel gauge still shows charge remaining. It is a voltage cliff issue, not a capacity issue. The cell may be partially discharged from storage, or the fuel gauge has not yet calibrated the new cell's internal resistance. Run one full calibration cycle first; if shutdowns continue after that, check that the cell resting voltage is at or above 3.7V before use.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43392107610202,"sku":"BWCS-ZTA430SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43392107642970,"sku":"BWCS-ZTA430SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43392107675738,"sku":"BWCS-ZTA430SL-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ZTA430SL-1.webp?v=1779143816","url":"https:\/\/batteryweb.com\/products\/beeline-pro-replacement-battery-38v-2300mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}