{"product_id":"blackview-tab-8-replacement-battery-37v-6500mah-li-polymer","title":"BlackView Tab 8 Replacement Battery 3.7V 6500mAh 32100140","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBlackView Tab 8 — 3.7V Li-Polymer Replacement Battery (32100140)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 6500mAh lithium-polymer battery replaces the original cell in the BlackView Tab 8 tablet. It carries OEM part number 32100140 and matches the voltage, capacity, and connector spec of the factory unit. Fits the Tab 8 only — verify your model before ordering.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBlackView Tab 8 fitment:\u003c\/strong\u003e\n    The Tab 8 runs a single-cell Li-Polymer pack at 3.7V nominal with a proprietary flat connector. The BMS on this tablet communicates cell state to the Android power stack — voltage and connector alignment both matter for the OS to read the pack correctly.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge cycles on the Tab 8 platform. The BMS accepted the pack without fault codes, and the charge IC cycled through CC\/CV stages cleanly at both standard and elevated charge rates.\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, then charge uninterrupted to 100%. The Tab 8's fuel gauge IC calibrates against cell impedance data from the old pack — one complete cycle resets it against the new cell and clears the inaccurate percentage readings that typically appear right after installation.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the BlackView Tab 8 shuts down at 15–25% remaining\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eUnder combined display and Wi-Fi load, the Tab 8 draws enough current to drag cell voltage below the BMS cutoff threshold even when the reported percentage still looks healthy. A degraded or freshly swapped cell has higher internal resistance, which means voltage sags faster under load than at rest. The fuel gauge sees a resting voltage above cutoff but cannot predict the sag under load — so the shutdown looks sudden. After the recalibration cycle above, the gauge maps the new cell's actual discharge curve and the premature shutdowns stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eFast charging not available after battery replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Tab 8 charge IC runs a negotiation handshake on the first accepted charge cycle before enabling higher charge rates. A brand-new cell will typically start on standard 5V charging and unlock the faster profile after one full charge to 100%. If fast charge still does not appear after that, check that the charger itself outputs the correct voltage — the Tab 8 requires a USB-PD or compatible adapter rated for 9V\/2A or higher to trigger the elevated rate.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43425817919578,"sku":"BWCS-BVT800SL-1","price":43.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43425817952346,"sku":"BWCS-BVT800SL-2","price":51.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43425817985114,"sku":"BWCS-BVT800SL-3","price":56.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BVT800SL-1.webp?v=1779929837","url":"https:\/\/batteryweb.com\/products\/blackview-tab-8-replacement-battery-37v-6500mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}