{"product_id":"google-nexus-7-2nd-replacement-battery-38v-3950mah-li-polymer","title":"Google Nexus 7 2nd Gen C11PNCH Replacement Battery 3.8V 3950mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eGoogle Nexus 7 2nd Generation — 3.8V Li-Polymer Replacement Battery (C11PNCH)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.8V, 3950mAh Li-Polymer replacement battery for the Google Nexus 7 2nd generation tablet. It fits the ME571KL, NEXUS7CVZW, and Nexus 7 HD variants that use the C11PNCH cell. Use it to restore a tablet that no longer holds a usable charge.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNexus 7 2nd Gen variant compatibility:\u003c\/strong\u003e\n    The ME571KL (ASUS-manufactured Wi-Fi model), NEXUS7CVZW (Verizon LTE), and Nexus 7 HD all share the same C11PNCH footprint, connector pinout, and BMS communication protocol — one cell fits the full lineup.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell in a Nexus 7 2nd Gen through charge, discharge, and wake cycles. The BMS handshake completed correctly, charge IC accepted the cell without fault codes, and the device booted normally under screen-on load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration after install:\u003c\/strong\u003e\n    After fitting this battery, run the tablet down to automatic shutoff — do not force-power-off — then charge uninterrupted to 100%. This gives the fuel gauge IC a full-range reference against the new cell and eliminates the inaccurate percentage readout that almost always appears 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\"\u003eNexus 7 shutting down at 15–25% remaining after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Nexus 7 runs its display, Wi-Fi radio, and SoC simultaneously under normal use. That combined draw creates a brief voltage sag that can pull cell voltage below the BMS low-voltage cutoff threshold before the percentage gauge reaches zero. The fuel gauge IC is still calibrated to the old cell's discharge curve, so it reports 20% when the actual usable capacity is nearly gone. One full discharge-to-shutoff cycle followed by an uninterrupted charge to 100% resets the gauge reference and stops the premature cutoff.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eFast charging not available after replacing the Nexus 7 battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Nexus 7 2nd Gen uses USB charging negotiation that requires at least one completed charge cycle before the charge IC fully accepts the new cell's parameters. On the first charge after installation, the IC defaults to a conservative current limit — this looks like slow or standard charging. Plug into the original charger or a USB-PD adapter rated at 5V\/2A and let it complete one full charge without interruption. After that cycle, normal charge rates resume.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43426054406234,"sku":"BWCS-AUK009SL-1","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43426054439002,"sku":"BWCS-AUK009SL-2","price":34.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43426054471770,"sku":"BWCS-AUK009SL-3","price":37.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AUK009SL-1.webp?v=1779930307","url":"https:\/\/batteryweb.com\/products\/google-nexus-7-2nd-replacement-battery-38v-3950mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}