{"product_id":"doro-liberto-810-replacement-battery-37v-1500mah-li-ion","title":"Doro Liberto 810 Replacement Battery DBH-1500A 3.7V 1500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDoro Liberto 810 Series — 3.7V Li-ion Replacement Battery (DBH-1500A)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V 1500mAh Li-ion replacement cell for the Doro Liberto 810, Liberto 810 Mini, and model 6379. It matches the OEM DBH-1500A specification and fits the original battery bay without modification. Capacity is 1500mAh (5.55Wh), identical to the factory cell.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLiberto 810, 810 Mini, and 6379 compatibility:\u003c\/strong\u003e\n    All three models share the same battery bay dimensions, connector pinout, and BMS handshake protocol — one cell covers the entire range without adaptation.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through a full charge-discharge cycle on the Liberto 810. The BMS accepted the cell without error flags, and charge IC communication stayed within normal parameters throughout.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration after install:\u003c\/strong\u003e\n    After fitting this cell, run one complete discharge to automatic shutdown, then charge uninterrupted to 100% before use. The Liberto 810's fuel gauge IC calibrates its coulomb counter against this first full cycle — skipping it causes the OS to report inaccurate percentages for days.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Liberto 810 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Liberto 810 uses a fuel gauge IC that builds its charge model from the original cell's discharge curve. When you install a new cell, that learned curve no longer matches the actual cell chemistry. The IC keeps projecting percentage against old data, so the displayed number drifts from reality. One complete discharge-to-shutdown followed by an uninterrupted charge to 100% resets the coulomb counter and forces the IC to relearn against the new cell.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on the replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the cell voltage drops sharply under load — typically during a voice call, when the modem draws a burst of current the cell can't sustain cleanly. The phone's protection circuit reads the resulting voltage sag as critically low and cuts power before the displayed percentage reaches zero. It is not a faulty cell — it is an uncalibrated fuel gauge mapping the wrong voltage cliff. Complete the recalibration cycle described above; after one full discharge-charge cycle the shutdown threshold should align correctly with actual cell voltage near 3.5V under load.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404279611482,"sku":"BWCS-DEP810SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404279644250,"sku":"BWCS-DEP810SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404279677018,"sku":"BWCS-DEP810SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DEP810SL-1.webp?v=1779369550","url":"https:\/\/batteryweb.com\/products\/doro-liberto-810-replacement-battery-37v-1500mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}