{"product_id":"doro-7030-replacement-battery-37v-1200mah-li-ion","title":"Doro 7030 DBX-1350A Replacement Battery 3.7V 1200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eDoro 7030 \/ 7031 \/ DFC-0270 \/ 7080 — 3.7V Li-ion Replacement Battery (DBX-1350A)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThe DBX-1350A is a 3.7V, 1200mAh (4.44Wh) Li-ion cell for the Doro 7030 mobile phone. It also fits the 7031, DFC-0270, and 7080 handsets, which share the same battery bay dimensions and connector. If your original cell drains fast, won't hold a charge, or has swollen, this is the direct swap.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e7030 \/ 7031 \/ DFC-0270 \/ 7080 compatibility:\u003c\/strong\u003e\n    These four Doro models share the same 53.54 × 38.30 × 5.56mm footprint, 3.7V nominal rail, and three-contact connector. The BMS handshake across all four is identical, so one cell covers the 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 load on the bench. The BMS responded correctly to cutoff at full charge and low-voltage protection triggered cleanly before cell damage voltage — no runaway, no false trips.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration after install:\u003c\/strong\u003e\n    On first use after fitting this cell, run it down to auto-shutdown, then charge uninterrupted to 100%. This gives the phone's fuel gauge IC one complete reference cycle against the new cell's discharge curve — skip this and the percentage readout will drift.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Doro 7030 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe fuel gauge IC stores a discharge curve from the original cell. A new cell with a different internal resistance profile will read against that old curve and output an inaccurate percentage. The gauge needs at least one full discharge-to-shutdown followed by an uninterrupted charge to 100% before it builds a new reference map. Until that cycle completes, readings of 80% jumping to 40% or sudden shutdowns at 20% are the gauge — not a fault with the cell itself.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDoro 7030 won't power on after the replacement battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eIf the replacement cell discharged below approximately 2.5V during storage, the BMS locks the output rail to protect the cell from damage. The phone shows nothing — no charging screen, no vibration. Connect the phone to a low-current charger (a standard 5V USB wall adapter, not a fast charger) and leave it for 20–30 minutes without pressing any buttons. Once the BMS detects voltage has recovered above the lockout threshold, it re-enables output and the phone will begin a normal boot. If it still shows nothing after 30 minutes, check that the charger is delivering at least 5V 0.5A.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43391882887258,"sku":"BWCS-DEP703SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43391882920026,"sku":"BWCS-DEP703SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43391882952794,"sku":"BWCS-DEP703SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DEP703SL-1.webp?v=1779142479","url":"https:\/\/batteryweb.com\/products\/doro-7030-replacement-battery-37v-1200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}