{"product_id":"toshiba-kira-13-kirabook-replacement-battery-148v-3300mah-li-polymer","title":"Toshiba KIRA 13 Kirabook Replacement Battery 14.8V 3300mAh PA5160U","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eToshiba KIRA 13 Kirabook — 14.8V Li-Polymer Replacement Battery (PA5160U-1BRS)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 14.8V Li-Polymer battery replaces the original cell in the Toshiba KIRA 13 Kirabook and Kirabook U930t-B ultrabooks. It carries OEM part numbers PA5160U-1BRS, P000592540, P000673860, and G71C000GG110. Capacity is 3300mAh (48.84Wh), matching the original specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eKIRA 13 \/ U930t-B platform fit:\u003c\/strong\u003e\n    These models share the same 14.8V four-cell Li-Polymer architecture, identical connector pinout, and the same BMS handshake protocol — so one cell covers the full compatible range listed above.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge, discharge, and BMS communication checks on a KIRA 13 unit. The BMS negotiated correctly, cell balancing triggered as expected, and no protection cutoffs fired during the test cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration on the Kirabook:\u003c\/strong\u003e\n    After fitting this cell, run one full discharge to hibernate-cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every 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 after fitting the new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Kirabook BIOS reads health data from EEPROM registers on the battery's BMS. When a new cell arrives, those registers reflect factory defaults, not a learned discharge profile — so the BIOS flags it as degraded even though the cell is new. Running one full discharge-to-hibernate then a complete uninterrupted charge lets the BIOS write a fresh baseline to those registers. After one to two cycles, the health indicator normalises. No firmware update or BIOS setting change is needed.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eKirabook shutting down at 20–30% shown on the fuel gauge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC hasn't yet calibrated against the new cell's actual voltage curve. The IC maps a stale discharge profile onto the new chemistry, so it misjudges the remaining capacity and the system shuts down before the displayed percentage reaches zero. The fix is deliberate calibration: let the laptop discharge fully to automatic hibernate, then charge to 100% without interruption — repeat this two to three times. After calibration cycles, the fuel gauge tracks accurately and the early shutdown stops.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409696096346,"sku":"BWCS-TOK130NB-1","price":123.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409696129114,"sku":"BWCS-TOK130NB-2","price":142.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409696161882,"sku":"BWCS-TOK130NB-3","price":155.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-TOK130NB-1.webp?v=1779580474","url":"https:\/\/batteryweb.com\/products\/toshiba-kira-13-kirabook-replacement-battery-148v-3300mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}