{"product_id":"google-pixel-6-replacement-battery-385v-4500mah-li-polymer","title":"Google Pixel 6 GMSB3 Replacement Battery 3.85V 4500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eGoogle Pixel 6 Series — 3.85V Li-Polymer Replacement Battery (GMSB3)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.85V, 4500mAh Li-Polymer replacement cell for the Google Pixel 6 (GR1YH, G9S9B, GB7N6). It fits the standard battery bay and connects to the Pixel 6's charge IC and fuel gauge system. Swap it in when the original cell can no longer hold voltage under Tensor SoC and display load.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePixel 6 model variants covered:\u003c\/strong\u003e\n    GR1YH, G9S9B, and GB7N6 all share the same battery footprint, connector pinout, and BMS handshake protocol — one cell covers the full production run of the base Pixel 6.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through Google's USB-PD charge negotiation, confirmed the BMS accepted the charge IC handshake on the first cycle, and verified the fuel gauge IC began tracking discharge current without faults.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    On first use after installation, disable fast charging for one complete discharge-charge cycle. This lets the fuel gauge IC recalibrate against the new cell's discharge curve before high-current fast charging pushes current into an uncalibrated cell.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on the Pixel 6 after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the fuel gauge IC is still mapped to the old cell's discharge curve. When the Pixel 6's Tensor SoC and 5G modem draw peak current, the new cell's voltage drops sharply at a point the gauge reads as 20–30% remaining. The system interprets this voltage sag as a fault and cuts power. One full discharge-charge cycle without fast charging resets the coulomb counter and maps the gauge to the new cell's actual voltage floor.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eUSB-PD fast charge not activating on the first cycle after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAfter installation, some Pixel 6 units do not initiate USB-PD negotiation immediately — the charge IC defaults to slow 5W trickle charging on the first session. This is a BMS protection response to an uncalibrated cell, not a fault with the replacement battery. Connect the phone to its original charger and let it complete one full slow charge. USB-PD fast charge typically resumes from the second charge cycle onward.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43391875743834,"sku":"BWCS-GPW600SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43391875776602,"sku":"BWCS-GPW600SL-2","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43391875809370,"sku":"BWCS-GPW600SL-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-GPW600SL-1.webp?v=1779142412","url":"https:\/\/batteryweb.com\/products\/google-pixel-6-replacement-battery-385v-4500mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}