{"product_id":"samsung-galaxy-a20e-replacement-battery-385v-2950mah-li-polymer","title":"Samsung Galaxy A20e EB-BA202ABU Replacement Battery 3.85V 2950mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSamsung Galaxy A20e — 3.85V Li-Polymer Replacement Battery (EB-BA202ABU)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.85V, 2950mAh Li-Polymer cell built to the same electrical spec as the factory EB-BA202ABU fitted in the Galaxy A20e. It fits the SM-A202, SM-A202F\/DS, SM-A202J, and related variants. If your A20e drains fast, shuts down unexpectedly, or won't hold a charge, this is the cell to swap.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eA20e battery family:\u003c\/strong\u003e\n    All SM-A202 variants — regardless of regional suffix — share the same battery bay dimensions, connector orientation, and BMS handshake protocol. One cell fits the whole range 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 and discharge on an SM-A202F\/DS. The BMS accepted charge from both USB-C standard and fast-charge protocols. Cutoff voltages triggered correctly at the high and low ends — 4.35V charge ceiling, 3.0V discharge floor.\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 for one complete discharge-charge cycle. This lets the fuel gauge IC map the new cell's discharge curve before high-current charging pushes current into an uncalibrated cell — preventing the erratic percentage readings common after a cell swap.\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 A20e after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the phone's fuel gauge IC still holds the discharge curve from the old, degraded cell. When the new cell hits a voltage point the IC associates with near-empty — typically around 3.5–3.6V under load — it triggers an emergency shutdown before the cell is actually depleted. The fix is one full uninterrupted discharge-to-shutdown followed by a full charge with fast charging disabled. After that cycle, the coulomb counter resets against the new cell's actual curve and percentage reporting stabilises.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eUSB fast charging not working on the first cycle after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSome A20e units don't negotiate fast-charge protocols with a freshly installed cell on the first cycle. The charge IC treats a new, high-impedance cell cautiously and defaults to standard 5V\/1A input until it has logged one charge cycle. Plug into a USB-C charger and let it complete a full standard charge — don't interrupt it. On the second cycle, fast charging resumes at the normal negotiated rate.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43392003539034,"sku":"BWCS-SMA202SL-1","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43392003571802,"sku":"BWCS-SMA202SL-2","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43392003604570,"sku":"BWCS-SMA202SL-3","price":30.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SMA202SL-1.webp?v=1779142874","url":"https:\/\/batteryweb.com\/products\/samsung-galaxy-a20e-replacement-battery-385v-2950mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}