{"product_id":"google-g576d-replacement-battery-387v-4400mah-li-polymer","title":"Google Pixel 9 Pro Fold G576D Replacement Battery 3.87V 4400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eGoogle Pixel 9 Pro Fold — 3.87V Li-Polymer Replacement Battery (G07DF \/ G949-01097-00)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.87V, 4400mAh Li-Polymer cell replaces the original battery in the Google Pixel 9 Pro Fold (G576D, G6GPR, G8HHN, GKV4X and related variants). It fits the fold's dual-display platform and interfaces directly with the device's charge IC and fuel gauge. Capacity is 4400mAh (17.03Wh), matching the original cell's energy rating.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePixel 9 Pro Fold platform fit:\u003c\/strong\u003e\n    These model numbers share the same battery bay dimensions (91.40 × 46.80 × 5.30mm), connector pinout, and BMS handshake protocol — which is why one cell covers all listed variants without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge, discharge, and fast-charge sequences on the Pixel 9 Pro Fold platform. The BMS accepted USB-PD negotiation correctly and held voltage within spec across the discharge curve with no thermal or cutoff anomalies.\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 and run one full discharge-to-charge cycle at standard rate. This lets the fuel gauge IC map the new cell's discharge curve before high-current charging pushes current into an uncalibrated coulomb counter.\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 9 Pro Fold after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Pixel 9 Pro Fold runs two displays and a high-frequency modem simultaneously. When those loads spike together, even a new cell must deliver current without dropping below the BMS cutoff voltage — typically 3.0V per cell. If the fuel gauge IC is still calibrated to the old cell's discharge curve, it reports 25% remaining while the actual open-circuit voltage is already near that floor. The phone shuts down because the hardware sees a voltage cliff the software hasn't predicted. One full slow-charge cycle after replacement resets the coulomb counter and resolves this.\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 a battery swap, the Pixel's charge IC runs a short conditioning pass before it allows the USB-PD handshake to negotiate higher wattage. On the first charge cycle, the phone may stay at standard 5V\/1A input even when a PD charger is connected. This is the charge IC protecting an uncalibrated cell, not a fault with the battery or charger. Plug in, let the first cycle complete fully, then reconnect — fast charge will activate on the second cycle once the IC confirms cell health.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43391779635290,"sku":"BWCS-GPW576SL-1","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43391779668058,"sku":"BWCS-GPW576SL-2","price":34.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43391779700826,"sku":"BWCS-GPW576SL-3","price":37.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-GPW576SL-1.webp?v=1779141908","url":"https:\/\/batteryweb.com\/products\/google-g576d-replacement-battery-387v-4400mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}