{"product_id":"samsung-sch-411-replacement-battery-37v-1200mah-li-ion","title":"Samsung SCH-411 Replacement Battery BTL1061EB 3.7V 1200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSamsung SCH-411 \/ SGH-410 Series — 3.7V Li-ion Replacement Battery (BTL1061EB)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1200mAh Li-ion replacement battery for the Samsung SCH-411, SGH-410, SCH-2500, and S410 feature phones. It replaces OEM part number BTL1061EB. The original cells in these phones are now well over a decade old, and capacity loss is the primary reason these devices stop holding a charge.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSCH-411 \/ SGH-410 family fit:\u003c\/strong\u003e\n    These models share the same battery bay dimensions, connector pinout, and 3.7V nominal voltage rail. One cell format covers the whole group — no adapter or modification needed.\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 the SCH-411 platform. The BMS accepted charge from the handset's onboard charge IC without error, and the protection circuit tripped correctly at the low-voltage cutoff threshold.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first install:\u003c\/strong\u003e\n    After fitting this cell, let the phone discharge to automatic shutdown, then charge uninterrupted to 100% before use. The SCH-411's fuel gauge IC was calibrated to the old cell's discharge curve — one full cycle resets it to the new cell's characteristics so percentage readings stay accurate.\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-411 shows wrong battery percentage after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe fuel gauge IC in these Samsung feature phones tracks capacity using a coulomb counter that was trained on the original cell's internal resistance and discharge profile. A new cell has a different impedance curve, so the counter's reference points are off from the first charge. The phone may show 40% and shut down, or sit at 100% longer than expected. One full discharge-to-shutdown and uninterrupted recharge cycle resets the counter baseline to the new cell.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone shuts off suddenly at 20–30% on the replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a voltage cliff issue, not a capacity issue. Under load — an active call or backlight at full brightness — the cell's terminal voltage drops sharply, crossing the low-voltage cutoff threshold even though the displayed percentage still reads mid-range. The fuel gauge IC hasn't recalibrated yet, so it misreports remaining charge. Run one full discharge cycle to let the gauge relearn the new cell's voltage-to-capacity curve, and the shutdowns stop. If they continue after two full cycles, check that the battery contacts in the bay are clean and making firm contact.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409456365658,"sku":"BWCS-SCH411SL-1","price":22.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43409456398426,"sku":"BWCS-SCH411SL-2","price":25.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43409456431194,"sku":"BWCS-SCH411SL-3","price":27.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SCH411SL-big.webp?v=1779579767","url":"https:\/\/batteryweb.com\/products\/samsung-sch-411-replacement-battery-37v-1200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}