{"product_id":"apple-iphone-13-pro-replacement-battery-385v-3000mah-li-polymer","title":"Apple iPhone 13 Pro A2656 Replacement Battery 3.85V 3000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eApple iPhone 13 Pro — 3.85V Li-Polymer Replacement Battery (A2656)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.85V, 3000mAh (11.55Wh) Li-Polymer cell is a direct replacement for the Apple iPhone 13 Pro (A2656). It fits the iPhone 13 Pro and iPhone 13 Pro 5G (A2640). Install it when the original cell has degraded past the point where iOS Battery Health flags service needed.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eiPhone 13 Pro and 13 Pro 5G fit:\u003c\/strong\u003e\n    Both variants share the same battery bay geometry, connector pinout, and BMS handshake protocol — the A2656 part number covers both. No adapter or modification required at the connector.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through full charge and discharge on an iPhone 13 Pro unit. The BMS accepted the cell without error flags, and the charge IC stepped through trickle, CC, and CV phases correctly to termination.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first install:\u003c\/strong\u003e\n    Disable fast charging for the first complete discharge-charge cycle after installation. This allows the coulomb counter to map the new cell's discharge curve before high-current USB-PD charging begins. Skipping this step causes the percentage readout to drift for the first several cycles.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the iPhone 13 Pro reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe fuel gauge IC on the iPhone 13 Pro uses a coulomb counter calibrated to the original cell's charge curve. When a new cell goes in, that curve no longer matches what the IC expects. The gauge reads voltage-based estimates until a full cycle teaches it the new cell's actual discharge profile. One complete discharge to automatic shutdown followed by an uninterrupted charge to 100% resets the learning algorithm and brings percentage accuracy back in line.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on the replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the replacement cell cannot sustain voltage under high-current loads — typically the 5G modem or ProMotion display ramping together. The cell voltage drops below the BMS cutoff threshold even though the fuel gauge still shows charge remaining. It is not a defective cell — it is an uncalibrated gauge hitting a real voltage cliff. Run one full discharge cycle without fast charge, and confirm the shutdown threshold moves below 15% before routine use.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43391862734938,"sku":"BWCS-IPH264SL-1","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43391862767706,"sku":"BWCS-IPH264SL-2","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43391862800474,"sku":"BWCS-IPH264SL-3","price":50.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-IPH264SL-1.webp?v=1779142367","url":"https:\/\/batteryweb.com\/products\/apple-iphone-13-pro-replacement-battery-385v-3000mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}