{"product_id":"samsung-sch-s200-replacement-battery-37v-1000mah-li-ion","title":"Samsung SCH-S200 Replacement Battery BSL1307WE 3.7V 1000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSamsung SCH-S200 \/ SCH-S208 — 3.7V Li-ion Replacement Battery (BSL1307WE)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1000mAh Li-ion battery that directly replaces the BSL1307WE cell in the Samsung SCH-S200 and SCH-S208 mobile phones. It restores power to devices where the original cell has degraded and no longer holds a usable charge. Voltage and capacity match the original spec exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSCH-S200 and SCH-S208 compatibility:\u003c\/strong\u003e\n    Both models run the same 3.7V single-cell architecture with an identical connector pinout and BMS handshake. One cell covers both variants 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 the SCH-S200 platform. The BMS accepted the cell, charge termination triggered correctly at 4.2V, and the protection circuit tripped as expected at the low-voltage cutoff threshold.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    After fitting this cell, disable any fast-charge mode and run one full discharge-to-charge cycle before normal use. The phone's fuel gauge IC is calibrated to the old cell's discharge curve — one clean cycle lets it map the new cell's characteristics and report accurate percentages.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the SCH-S200 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe SCH-S200 uses a fuel gauge IC that tracks charge state by measuring the discharge curve of the installed cell over time. When you fit a new cell, the IC still references the curve it mapped from the old, degraded battery. The percentage reading will appear inaccurate — often showing full charge, then jumping down unexpectedly — until the IC re-learns the new curve. One complete discharge from 100% down to automatic cutoff, followed by a full charge, resets the calibration. After that cycle, the percentage display tracks the actual cell state correctly.\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 fuel gauge IC hasn't yet calibrated to the new cell's voltage-to-capacity curve — the phone cuts power not because the cell is truly empty, but because the voltage reading at that state of charge falls outside what the uncalibrated IC expects. It's a software-side mismatch, not a fault with the cell itself. Run the phone down until it shuts off on its own, then charge uninterrupted to 100% without interruption. After that single calibration cycle, the shutdowns at 20–30% typically stop.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409459642458,"sku":"BWCS-SCH200SL-1","price":22.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43409459675226,"sku":"BWCS-SCH200SL-2","price":25.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43409459707994,"sku":"BWCS-SCH200SL-3","price":27.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SCH200SL-big.webp?v=1779579767","url":"https:\/\/batteryweb.com\/products\/samsung-sch-s200-replacement-battery-37v-1000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}