{"product_id":"dell-xps-12-9250-replacement-battery-76v-3900mah-li-polymer","title":"Dell XPS 12 9250 Replacement Battery 7.6V 3900mAh 9TV5X","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDell XPS 12 9250 \/ Latitude 12 7275 — 7.6V Li-Polymer Replacement Battery (9TV5X)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.6V 3900mAh (29.64Wh) Li-Polymer battery replaces the original cell in the Dell XPS 12 9250 and Latitude 12 7275 convertible ultrabooks. It cross-references OEM part numbers 9TV5X, 7VKV9, V55D0, and T02H. If your original battery no longer holds charge or the system shuts down unpredictably under load, this is the direct replacement.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eXPS 12 9250 and Latitude 12 7275 compatibility:\u003c\/strong\u003e\n    Both platforms share the same 7.6V two-cell Li-Polymer architecture, flat-profile connector, and BMS communication protocol — which is why a single cell fits both the XPS 12 convertible and the Latitude 12 7275 detachable.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell on an XPS 12 9250 chassis and confirmed the BMS handshake completes correctly — the system exits the \"plugged-in, not charging\" state and the fuel gauge IC begins tracking state-of-charge within the first full cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration on the XPS 12:\u003c\/strong\u003e\n    After fitting this cell, run one full discharge to hibernate-cutoff, then charge uninterrupted to 100%. This forces the BIOS battery learn cycle to reset against the new cell 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 immediately after replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe XPS 12 9250 stores battery health data in EEPROM on the old cell. When you swap to a new cell, the BIOS reads the cycle count and charge history it expects to find — and gets a blank slate instead. Dell's firmware interprets this as a degraded or unknown battery and flags health as \"poor\" in the BIOS and in Dell Power Manager. This is not a fault with the replacement cell. Run one full discharge-to-hibernate cycle followed by a full uninterrupted charge to 100%, and the learn cycle will overwrite the stale EEPROM values with accurate data from the new cell.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop 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 has not yet calibrated against the new cell's actual discharge curve. In the first few cycles after a swap, the IC maps state-of-charge using the old cell's parameters — so 20% displayed can correspond to a voltage that actually triggers the BMS low-voltage cutoff. The fix is not a hardware issue. Complete two to three full discharge-and-charge cycles without interruption. After that, the fuel gauge recalibrates and reported percentage aligns with real cell voltage — the shutdown-at-20% behaviour stops.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409723326554,"sku":"BWCS-DEX925NB-1","price":75.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409723359322,"sku":"BWCS-DEX925NB-2","price":87.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409723392090,"sku":"BWCS-DEX925NB-3","price":97.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DEX925NB-1.webp?v=1779580542","url":"https:\/\/batteryweb.com\/products\/dell-xps-12-9250-replacement-battery-76v-3900mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}