{"product_id":"apple-iphone-se-replacement-battery-382v-1620mah-li-polymer","title":"Apple iPhone SE 1620mAh Replacement Battery 3.82V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eApple iPhone SE — 3.82V Li-Polymer Replacement Battery (616-00107)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.82V, 1620mAh lithium-polymer cell that fits the Apple iPhone SE across variants A1724, A1723, and A1662. It replaces the original cell when the phone shuts down early, refuses to hold a charge, or the battery health percentage has dropped significantly. Capacity matches the factory specification at 1620mAh (6.19Wh).\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSE, A1724, A1723, A1662 compatibility:\u003c\/strong\u003e\n    All four variants share the same 90.46 × 32.32 × 3.56mm footprint, the same flex connector pinout, and the same BMS handshake with the iPhone SE's power management IC — so one cell covers the entire SE first-generation lineup.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell on an iPhone SE A1723 and confirmed the BMS negotiated correctly with the PMIC on first boot — charge acceptance started immediately and the power rails held stable under display, modem, and camera load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first install:\u003c\/strong\u003e\n    On first use after installation, disable fast charging and run one complete discharge-to-charge cycle. This lets the iPhone's coulomb counter recalibrate against the new cell's discharge curve before any high-current session pushes into an uncalibrated state.\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 SE reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe iPhone SE uses a coulomb counter that builds its fuel gauge model against the original cell's discharge curve over many charge cycles. When a new cell goes in, that stored model no longer matches the actual cell chemistry, so the percentage reading drifts. The OS may show 40% and suddenly drop to 15%, or the percentage may climb and fall without matching real capacity. One full discharge from 100% down to auto-shutoff, followed by an uninterrupted charge to 100%, forces the fuel gauge IC to rebuild its model against the new cell.\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 is a voltage cliff issue, not a capacity problem. Under peak load — modem transmit, screen at full brightness, GPS active — the cell voltage can sag below the PMIC's cutoff threshold even when the fuel gauge still reads a healthy percentage. It happens most often on the first few cycles before the coulomb counter has accurate data on the new cell. Run two full discharge-charge cycles and confirm the cell voltage under load stays above 3.4V — if shutdowns persist past that point, reseat the battery connector and verify contact pressure at the flex cable ZIF socket.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43392095354970,"sku":"BWCS-IPH172SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43392095387738,"sku":"BWCS-IPH172SL-2","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43392095420506,"sku":"BWCS-IPH172SL-3","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-IPH172SL-1.webp?v=1779143748","url":"https:\/\/batteryweb.com\/products\/apple-iphone-se-replacement-battery-382v-1620mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}