{"product_id":"samsung-galaxy-a5-2017-replacement-battery-385v-3000mah-li-polymer","title":"Samsung Galaxy A5 2017 Replacement Battery EB-BA520ABE 3.85V 3000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSamsung Galaxy A5 2017 — 3.85V Li-Polymer Replacement Battery (EB-BA520ABE)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.85V, 3000mAh Li-Polymer cell replaces the original battery in the Samsung Galaxy A5 2017, covering SM-A520S, SM-A520F\/DS, SM-A520F, and related variants. It matches the OEM part number EB-BA520ABE and fits the stock battery bay without modification. Dimensions are 86.90 × 39.60 × 4.20 mm — confirm these against your existing cell before installing.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eA5 2017 variant coverage:\u003c\/strong\u003e\n    The SM-A520 series shares one battery footprint and a single voltage rail across all regional variants. The connector pinout and BMS handshake logic are identical across SM-A520S, SM-A520F, and SM-A520F\/DS, so one cell covers 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 on an SM-A520F unit. The BMS accepted the charge handshake on the first cycle, charge current ramped correctly through CC\/CV stages, and no thermal flags triggered during the full charge sequence.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    After installation, disable fast charging and run one full discharge-to-charge cycle at standard current. This lets the fuel gauge IC map its coulomb counter against the new cell's actual discharge curve before high-current charging begins on 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\"\u003eWhy the A5 2017 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Galaxy A5 2017 uses a fuel gauge IC that tracks charge state by counting coulombs against a stored discharge curve. That curve was built on the original cell — when you install a new cell, the stored curve no longer matches actual cell behaviour. Until the IC recalibrates, percentage readings can be off by 10–20%. One complete discharge down to auto-shutdown followed by a full charge to 100% at standard current resets the reference curve and restores accurate reporting.\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 cell voltage drops sharply under load — typically during a modem burst, screen wake, or simultaneous background sync — faster than the fuel gauge IC predicts. The phone's protection circuit reads the voltage cliff as a critical low and cuts power before the displayed percentage reaches zero. It is not a faulty cell; it is an uncalibrated gauge reading a steep-sloped Li-Polymer discharge curve. Run two full discharge-charge cycles at standard current and the shutdowns stop once the IC learns the new cell's actual low-voltage knee, which sits near 3.4V under load.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43392073039962,"sku":"BWCS-SMA520XL-1","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43392073072730,"sku":"BWCS-SMA520XL-2","price":28.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43392073105498,"sku":"BWCS-SMA520XL-3","price":31.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SMA520XL-1.webp?v=1779143639","url":"https:\/\/batteryweb.com\/products\/samsung-galaxy-a5-2017-replacement-battery-385v-3000mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}