{"product_id":"toshiba-satellite-c50-replacement-battery-148v-2200mah-li-ion","title":"PA5185U-1BRS Toshiba Satellite C50 Replacement Battery 14.8V 2200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eToshiba Satellite C50 \/ C55 Series — 14.8V Li-ion Replacement Battery (PA5185U-1BRS)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.8V, 2200mAh Li-ion replacement battery for the Toshiba Satellite C50, C50-B, C55D, C55T-B5110, and over 300 additional Satellite variants sharing the same power rails and connector. It replaces OEM part numbers PA5185U-1BRS, PA5184U-1BRS, PA5186U-1BRS, and PA5195U-1BRS. Capacity is 32.56Wh — identical to the original specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSatellite C50 and C55 platform compatibility:\u003c\/strong\u003e\n    These models share the same 14.8V four-cell architecture, connector pinout, and BMS handshake protocol. A single cell SKU covers the full range because the battery management IC reads the same EEPROM signature across all variants in this chassis family.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell on a Satellite C55D unit, monitoring charge acceptance and BMS communication at each stage. The protection circuit tripped correctly at low-voltage cutoff and resumed charging without fault flags after reconnection.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration on the Satellite C50 chassis:\u003c\/strong\u003e\n    After fitting this cell, run the laptop on battery until Windows forces hibernate, then charge uninterrupted to 100% without interruption. This resets the BIOS battery learn cycle and clears the false \"poor health\" warning that fires after any cell swap on this platform.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting battery health as poor immediately after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Satellite C50 BIOS stores charge history and health data in the outgoing cell's EEPROM. When a new cell is installed, the BIOS compares the blank EEPROM state against its stored baseline and flags the battery as degraded before a single cycle has run. This is not a fault with the replacement cell — it is a calibration gap. Run one full discharge to hibernate-cutoff followed by an uninterrupted charge to 100%, and the BIOS learn cycle will write fresh baseline data to the new cell's EEPROM. After two to three full cycles, the health indicator should read normal.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shutting down at 20–30% charge shown on the gauge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC is still calibrated against the old, degraded cell's voltage curve. Under full CPU and display load, the new cell's voltage profile differs from what the IC expects, so it hits a false low-voltage floor and cuts power before the cell is actually empty. It is not a fault in the replacement battery. Force two complete discharge-to-hibernate cycles followed by full uninterrupted charges — each cycle teaches the fuel gauge IC the actual voltage cliff of the new chemistry. After calibration, the shutdowns stop and the percentage reading stabilises.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43410737725530,"sku":"BWCS-TOC550NB-1","price":95.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43410737758298,"sku":"BWCS-TOC550NB-2","price":109.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43410737791066,"sku":"BWCS-TOC550NB-3","price":118.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-TOC550NB-1.webp?v=1779580789","url":"https:\/\/batteryweb.com\/products\/toshiba-satellite-c50-replacement-battery-148v-2200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}