{"product_id":"asus-vivo-tab-tf810c-replacement-battery-37v-7900mah-li-polymer","title":"Asus Vivo Tab TF810C Replacement Battery 3.7V 7900mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAsus Vivo Tab TF810C — 3.7V Li-Polymer Replacement Battery (C12-TF810C)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 7900mAh Li-Polymer replacement battery for the Asus Vivo Tab TF810C and TF810 tablet. It replaces OEM part C12-TF810C when the original cell no longer holds a usable charge. Capacity is rated at 29.23Wh — matching the original cell specification for this 10-inch tablet platform.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTF810C and TF810 platform fitment:\u003c\/strong\u003e\n    Both model variants share the same battery bay dimensions, connector pinout, and BMS communication protocol. The C12-TF810C part number covers the full TF810 line — no hardware modification needed to fit either variant.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through a full charge cycle on a TF810C unit. The BMS handshake completed correctly, the charge IC accepted the cell without fault codes, and voltage held stable across the display and WiFi load combined.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration after swap:\u003c\/strong\u003e\n    After fitting this battery, run one full discharge to automatic shutoff — do not force-shutdown — then charge uninterrupted to 100%. This gives the fuel gauge IC a full voltage reference range against the new cell and corrects the inaccurate percentage readings that commonly appear after a swap.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTablet shutting down at 15–25% remaining on TF810C\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe TF810C runs the display backlight and WiFi radio simultaneously, which creates a combined current draw that causes a fast voltage drop at lower state-of-charge. The fuel gauge IC reads this sag as a critical low-voltage condition and triggers an emergency shutdown before the reported percentage reaches zero. A new cell with full capacity reduces the severity of this sag. After fitting this battery, complete one full recalibration cycle — discharge to automatic shutoff, then charge uninterrupted to 100% — to give the fuel gauge accurate low-voltage reference points.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eFast charging not available after battery swap on TF810C\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe TF810C charge controller negotiates charge rate based on a completed prior charge cycle — it does not immediately accept full charge current on a freshly installed cell. Until the new cell completes one full accepted charge cycle, the tablet may draw at a reduced rate. This is a charge IC behaviour, not a fault with the battery. Plug in using the original Asus charger and allow one uninterrupted full charge to complete — fast charge availability typically restores after that cycle.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43426073346138,"sku":"BWCS-AUF810SL-1","price":50.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43426073378906,"sku":"BWCS-AUF810SL-2","price":59.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43426073411674,"sku":"BWCS-AUF810SL-3","price":65.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AUF810SL-1.webp?v=1779930306","url":"https:\/\/batteryweb.com\/products\/asus-vivo-tab-tf810c-replacement-battery-37v-7900mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}