{"product_id":"clevo-w350st-replacement-battery-148v-5200mah-li-ion","title":"Clevo W350ST Replacement Battery 14.8V 5200mAh 6-87-W370S-427","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eClevo W350ST \/ W355ST Series — 14.8V Li-ion Replacement Battery (6-87-W370S-427)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 14.8V, 5200mAh Li-ion battery replaces the original cell in Clevo W350ST, W355ST, W355SS, and XMG-A723 notebooks. It matches the OEM voltage, connector, and BMS handshake required by these platforms. Capacity is 76.96Wh — use this figure to cross-check against system information after install.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eW350ST \/ W370S platform fit:\u003c\/strong\u003e\n    These models share a common battery bay, four-pin SMBus connector, and 14.8V nominal rail. Part numbers 6-87-W370S-427, 6-87-W37ES-427, 6-87-W37SS-427, W370BAT-8, and W370BAT-3 all reference this same cell configuration — the BMS communicates capacity and health data identically across the series.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and discharge on a W350ST unit. The BMS accepted the cell without error codes, charge termination triggered correctly at 16.8V, and low-voltage cutoff engaged before cell damage thresholds were reached.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install discharge cycle:\u003c\/strong\u003e\n    After fitting this battery, run one full discharge to hibernate-cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health or low-capacity warning that almost always appears 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\"\u003eWhy the W350ST shuts down at 20–30% charge remaining\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC still holds calibration data from the old, degraded cell. The BIOS maps voltage curves from the previous battery and misreads the new cell's actual state of charge. Under combined CPU and display load, the system hits a voltage point it interprets as near-empty and triggers a forced shutdown. One full discharge-to-hibernate followed by an uninterrupted charge to 100% forces a recalibration against the new cell's actual chemistry.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS showing battery health as \"poor\" or \"unknown\" straight after install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe W350ST reads health status from EEPROM data embedded in the battery's BMS, not from live voltage alone. A new cell ships with a cycle count of zero and rated capacity data that doesn't match the worn charge history the BIOS was tracking. This mismatch triggers a false health warning — it is not a fault with the replacement cell. Complete one full learn cycle as described above and the BIOS health indicator will update to reflect the actual cell state.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409683546202,"sku":"BWCS-CLW350NB-1","price":80.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409683578970,"sku":"BWCS-CLW350NB-2","price":93.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409683611738,"sku":"BWCS-CLW350NB-3","price":103.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CLW350NB-1.webp?v=1779580400","url":"https:\/\/batteryweb.com\/products\/clevo-w350st-replacement-battery-148v-5200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}