{"product_id":"samsung-sm-a015v-replacement-battery-385v-2900mah-li-polymer","title":"QL1695 Samsung Galaxy A01 Replacement Battery 3.85V 2900mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSamsung Galaxy A01 SM-A015V — 3.85V Li-Polymer Replacement Battery (QL1695)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.85V, 2900mAh (11.17Wh) Li-Polymer replacement battery for the Samsung Galaxy A01 (SM-A015V, SM-A015M\/DS, and related variants). It replaces the original QL1695 cell when the factory battery can no longer hold a usable charge. Fits the slim battery bay without modification — same footprint at 71.30 x 57.55 x 4.20mm.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGalaxy A01 series compatibility:\u003c\/strong\u003e\n    The SM-A015V, SM-A015M\/DS, and related A01 variants share the same battery connector pinout and BMS handshake protocol, which is why a single QL1695 cell covers this entire model cluster.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell in an SM-A015V and confirmed the BMS accepted the new cell without triggering a fault flag — charge current stepped up normally through trickle, CC, and CV phases.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration after swap:\u003c\/strong\u003e\n    On first use after installation, disable fast charging and run one full discharge-to-charge cycle. This gives the fuel gauge IC time to map the new cell's discharge curve before fast-charge current is introduced into 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\"\u003eSudden shutdown at 20–30% on the Galaxy A01 after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Galaxy A01's fuel gauge IC stores the discharge curve of the original cell in its coulomb counter. When a new cell goes in, the counter is still calibrated to the old, degraded cell's curve — so it misreads remaining capacity. Under screen or modem load, the new cell's voltage drops faster than the IC expects, and the phone hits the low-voltage cutoff while the gauge still shows 20–30%. One full discharge cycle, draining to automatic shutdown and charging back to 100%, forces the IC to relearn the new curve. After that cycle, percentage readings stabilise.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eUSB fast charge not activating on the first cycle after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe charge IC on the A01 runs a handshake with the BMS before stepping up to fast-charge current. On the very first charge cycle with a new cell, the BMS often returns a conservative response — the IC stays in standard 5V charging mode as a precaution. This is not a fault. Let the first cycle complete at standard rate, disconnect, then reconnect — the BMS handshake resolves on the second connection and fast charge activates normally. If it still does not step up, confirm the charger outputs at least 9V\/1.67A and the cable supports USB-PD signalling.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43391983550554,"sku":"BWCS-SMA015SL-1","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43391983583322,"sku":"BWCS-SMA015SL-2","price":28.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43391983616090,"sku":"BWCS-SMA015SL-3","price":31.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SMA015SL-1.webp?v=1779142738","url":"https:\/\/batteryweb.com\/products\/samsung-sm-a015v-replacement-battery-385v-2900mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}