{"product_id":"toshiba-satellite-m30-s3501-replacement-battery-108v-8800mah-li-ion","title":"Toshiba Satellite M30 PA3331U-1BAS 10.8V Replacement Battery","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eToshiba Satellite M30-S3501 — 10.8V Li-ion Replacement Battery (PA3331U-1BAS)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 10.8V, 8800mAh Li-ion battery for the Toshiba Satellite M30 series laptop. It replaces OEM part numbers PA3331U-1BAS, PA3331U-1BRS, PA3332U-1BAS, and PA3332U-1BRS. Fit models include the Satellite M30-S3501, M30-241, M30-S309, M30-154, and over 70 additional M30 variants.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eM30 series platform compatibility:\u003c\/strong\u003e\n    These M30 variants share a common power rail at 10.8V and use the same physical connector and BMS handshake protocol. Swapping between PA3331 and PA3332 suffix part numbers is safe — Toshiba revised the part number mid-production without changing the electrical spec.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell on an M30-series chassis and monitored the BMS through charge and discharge cycles. The protection circuit tripped correctly at low-voltage cutoff and accepted a full charge without thermal event or BIOS rejection.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration on the M30:\u003c\/strong\u003e\n    After fitting this battery, run the laptop on battery only until it reaches hibernate cutoff — do not interrupt with AC. Then charge uninterrupted to 100%. This resets the M30's BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting poor battery health immediately after fitting a new cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Satellite M30 BIOS stores battery health data in EEPROM tied to the original cell's charge history. When a new cell is installed, that stored data no longer matches the actual cell, so the BIOS flags it as degraded. This is not a fault with the replacement — it is stale data from the old battery. Running one full discharge-to-hibernate followed by an uninterrupted charge to 100% forces the BIOS to rewrite its battery profile. After that single learn cycle, the health warning clears.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shuts down abruptly at 20–30% charge shown on screen\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC has not yet calibrated against the new cell's actual voltage curve. The OS reads 25% remaining, but the cell hits its low-voltage cliff under full CPU and display load before the gauge catches up. The shutdown is the BMS protecting the cell — not a defect. Run two full discharge-to-hibernate cycles without interruption, and the fuel gauge IC re-maps the curve accurately against the new cell chemistry. After calibration, cutoff aligns with the displayed percentage at approximately 10.8V nominal load.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43410875449434,"sku":"BWCS-TOM30HB-1","price":88.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43410875482202,"sku":"BWCS-TOM30HB-2","price":104.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43410875514970,"sku":"BWCS-TOM30HB-3","price":116.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-TOM30HB-big.webp?v=1779581546","url":"https:\/\/batteryweb.com\/products\/toshiba-satellite-m30-s3501-replacement-battery-108v-8800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}