{"product_id":"samsung-sm-g357m-replacement-battery-38v-1900mah-li-ion","title":"Samsung Galaxy Ace 4 EB-BG357BBE Replacement Battery 3.8V 1900mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSamsung Galaxy Ace 4 (SM-G357M) — 3.8V Li-ion Replacement Battery (EB-BG357BBE)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.8V, 1900mAh Li-ion replacement battery for the Samsung Galaxy Ace 4 and Ace Style LTE series. It fits the SM-G357M, SM-G357FZ, and closely related variants that use the EB-BG357BBE cell. Swap it in when the original cell no longer holds voltage under screen or call load.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAce 4 \/ Ace Style LTE platform fit:\u003c\/strong\u003e\n    The SM-G357 series shares a common battery bay, connector pinout, and BMS handshake across its regional variants. The same cell works across SM-G357M and SM-G357FZ because Samsung kept the charge IC and connector identical across that production run.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the SM-G357M charge IC and confirmed the BMS communicates state-of-charge correctly. The protection circuit tripped at expected low-voltage cutoff and recovered cleanly on reconnection.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first install:\u003c\/strong\u003e\n    After fitting this cell, run one full discharge down to automatic shutdown, then charge uninterrupted to 100% before re-enabling fast charge. The phone's coulomb counter is still mapped to the old cell's discharge curve — one complete cycle resets it to the new cell's actual capacity.\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 Galaxy Ace 4 after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe SM-G357M's fuel gauge IC uses a stored discharge curve to predict remaining capacity. When you install a new cell, that curve no longer matches the new cell's actual voltage profile. Under modem transmission or screen-on load, the phone pulls current that drops cell voltage below what the IC expects at 20–30%, triggering an emergency shutdown. This is not a fault with the replacement cell — it is a calibration mismatch. Run one full discharge-to-shutdown and a complete charge cycle to resync the fuel gauge to the new cell.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone not powering on after the replacement battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge during storage, and if a cell drops below approximately 2.5V per cell, the BMS locks out to prevent damage from a forced charge into a deeply depleted cell. The SM-G357M will show no response — no boot logo, no charge indicator — when this happens. Connect the phone to a wall charger, not a PC USB port, and leave it for 20–30 minutes without pressing any buttons. Most BMS circuits on this platform will accept a low-current trickle from the charge IC and re-initialise once the cell climbs back above 3.0V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43392085491802,"sku":"BWCS-SMG357SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43392085524570,"sku":"BWCS-SMG357SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43392085557338,"sku":"BWCS-SMG357SL-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SMG357SL-1.webp?v=1779369095","url":"https:\/\/batteryweb.com\/products\/samsung-sm-g357m-replacement-battery-38v-1900mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}