{"product_id":"acer-liquid-jade-s-replacement-battery-38v-1900mah-li-polymer","title":"Acer Liquid Jade S Compatible Battery 3.8V 1900mAh BAT-D10","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAcer Liquid Jade S \/ Z Series — 3.8V Li-Polymer Replacement Battery (BAT-D10)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.8V Li-Polymer cell replaces the original BAT-D10 battery in the Acer Liquid Jade S (S56) and Liquid Jade Z (S57). Rated at 1900mAh (7.22Wh), it fits the internal bay of both handsets without modification. It covers the same connector pin-out and BMS handshake as the factory cell.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLiquid Jade S56 and S57 platform compatibility:\u003c\/strong\u003e\n    Both the Jade S and Jade Z share the same battery bay geometry, connector type, and 3.8V nominal voltage rail. A single BAT-D10 cell fits both because Acer carried the same power architecture across both handsets in this line.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through a full charge-to-cutoff sequence and monitored BMS communication with the charge IC. The protection circuit tripped correctly at the low-voltage threshold, and the cell accepted a standard CC-CV charge profile without fault flags.\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 and run one complete discharge-to-charge cycle before resuming normal use. This allows the fuel gauge IC to map the new cell's discharge curve before high-current charging pushes current into an uncalibrated state.\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 Liquid Jade S after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eAfter fitting a new cell, some Liquid Jade S units shut down abruptly at 20–30% reported charge. This is a voltage cliff issue — under peak modem or display load, the new cell's voltage drops below the BMS cutoff threshold before the fuel gauge registers a low state. The fuel gauge IC is still calibrated to the old cell's discharge curve, so the percentage reading lags behind actual cell voltage. One full discharge-charge cycle with no fast charging lets the coulomb counter re-anchor to the new cell's actual capacity.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone shows wrong battery percentage after BAT-D10 replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Liquid Jade S uses a coulomb counter in the fuel gauge IC to estimate remaining charge. When you fit a new cell, the IC still holds the learned curve from the degraded original — so it reports inaccurate percentages, often jumping or inflating remaining charge. The fix is a full recalibration cycle: charge to 100%, then discharge under normal use until the phone cuts off, then charge back to 100% uninterrupted. After that single cycle, the fuel gauge reanchors to the new cell and percentage reporting stabilises.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404156895322,"sku":"BWCS-ACS550SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404156928090,"sku":"BWCS-ACS550SL-2","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404156960858,"sku":"BWCS-ACS550SL-3","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ACS550SL-1.webp?v=1779369079","url":"https:\/\/batteryweb.com\/products\/acer-liquid-jade-s-replacement-battery-38v-1900mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}