{"product_id":"samsung-sch-r200-replacement-battery-37v-1600mah-li-ion","title":"Samsung AB403450BA SCH-R200 Replacement Battery 3.7V 1600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSamsung SCH-R200 — 3.7V Li-ion Replacement Battery (AB403450BA)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1600mAh Li-ion replacement battery for the Samsung SCH-R200 flip phone. It uses OEM part number AB403450BA and slots directly into the battery bay on the rear of the handset. Voltage, connector orientation, and physical dimensions (53.53 × 9.87 × 34.00mm) match the original cell.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSCH-R200 fit:\u003c\/strong\u003e\n    The SCH-R200 uses a dedicated battery bay with a fixed connector pinout tied to this part number. The BMS communicates charge state to the phone's fuel gauge IC over a third contact pin — any cell mismatch here causes the phone to reject the battery or report incorrect percentages.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran the AB403450BA through a full charge-discharge cycle on the SCH-R200 and confirmed BMS handshake, proper charge termination at 4.2V, and stable voltage delivery under screen and radio load. No cutoff events occurred during the discharge run.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    After fitting this cell, run the phone from a full charge down to automatic shutdown without interruption, then charge to 100% uninterrupted. This gives the fuel gauge IC one complete reference curve against the new cell before it starts tracking state-of-charge accurately.\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-R200 shuts down suddenly at 20–30% charge\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the fuel gauge IC was calibrated to the discharge curve of the old, degraded cell. The new cell holds a higher voltage at the same state-of-charge point, so the gauge misreads remaining capacity. Under the load spike of an outgoing call or screen wake, the phone hits what the IC thinks is a low-voltage cutoff before the battery is actually depleted. One full discharge-to-shutdown and uninterrupted recharge cycle resets the coulomb counter and eliminates these premature shutdowns.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone not powering on after the replacement battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells in storage self-discharge slowly. If the cell voltage drops below roughly 2.5V, the BMS trips a deep-discharge lockout and the phone will not respond to the power button or show any charging indicator. Connect the phone to a wall charger — not a computer USB port — and leave it undisturbed for 20–30 minutes. The charge IC needs a slow trickle current to bring the cell back above the BMS re-enable threshold, which sits around 2.9V on this chemistry. Once the charging indicator appears, the phone can proceed through a normal charge cycle.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405122601050,"sku":"BWCS-SMR200XL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405122633818,"sku":"BWCS-SMR200XL-2","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405122666586,"sku":"BWCS-SMR200XL-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SMR200XL-1.webp?v=1779370244","url":"https:\/\/batteryweb.com\/products\/samsung-sch-r200-replacement-battery-37v-1600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}