{"product_id":"sony-a202so-replacement-battery-389v-4850mah-li-polymer","title":"Sony Xperia 10 V A202SO Replacement Battery 3.89V 4850mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSony Xperia 10 V \/ A202SO Series — 3.89V Li-Polymer Replacement Battery (SNYSCA6)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.89V, 4850mAh Li-Polymer battery replaces the original cell in the Sony Xperia 10 V and its carrier variants — A202SO, PDX-225, SO-52C, and SOG07, among others. It restores full charge capacity when the factory cell has degraded, swells, or no longer holds voltage under load. Capacity figure is 18.87Wh as rated.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eXperia 10 V carrier variants:\u003c\/strong\u003e\n    The A202SO, SO-52C, SOG07, and PDX-225 are the same hardware platform sold across different Japanese carriers. They share an identical battery connector, BMS handshake protocol, and 3.89V nominal voltage rail — so one cell covers all variants.\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 the Xperia 10 V platform. The BMS accepted the cell without error flags, charge termination triggered correctly at 4.35V, and the protection circuit held low-voltage cutoff within spec.\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 build an accurate discharge curve against the new cell before the charge IC starts pushing high-current fast-charge rates into an uncalibrated coulomb counter.\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 Xperia 10 V after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC is still running the discharge curve it learned from the old, degraded cell. At around 20–30% reported charge, the new cell hits a voltage point the IC wasn't expecting, and the BMS cuts power before the OS can log a clean shutdown. The fix is one full discharge-charge cycle with fast charging off. After that cycle, the coulomb counter resets its reference points against the actual cell chemistry and the shutdowns stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eUSB-PD fast charge not activating on the first cycle after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAfter a cell swap, the Xperia 10 V's charge IC sometimes defaults to standard 5V\/1.5A charging on the first cycle. This is a BMS initialisation behaviour — the charge IC runs a low-current pre-charge pass to verify cell impedance before it negotiates a higher power contract with the charger. Use the original Sony charger for this first cycle, let it complete fully to 100%, and USB-PD fast charging will activate normally on the second cycle.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43391773933658,"sku":"BWCS-ERC610SL-1","price":39.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 2 Year","offer_id":43391773966426,"sku":"BWCS-ERC610SL-2","price":46.99,"currency_code":"USD","in_stock":false},{"title":"Warranty 3 Year","offer_id":43391773999194,"sku":"BWCS-ERC610SL-3","price":51.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ERC610SL-1.webp?v=1779141870","url":"https:\/\/batteryweb.com\/products\/sony-a202so-replacement-battery-389v-4850mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}