{"product_id":"brother-intellifax-1960c-replacement-battery-36v-700mah-ni-mh","title":"Brother IntelliFax-1960c BCL-BT10 Replacement Battery 3.6V 700mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBrother IntelliFax-1960c \/ 2580c — 3.6V Ni-MH Replacement Battery (BCL-BT10)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.6V, 700mAh Ni-MH replacement battery for the Brother IntelliFax-1960c, IntelliFax-2580c, BCL-D10, BCL-D20, and compatible portable fax models. It slots directly into devices that take the BCL-BT10, BCL-BT20, LT0197001, or BCL-BT part numbers. It restores cordless operation and memory backup when the original cell degrades.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIntelliFax-1960c and 2580c compatibility:\u003c\/strong\u003e\n    Both models share the same 3.6V single-cell Ni-MH format, connector pinout, and BMS communication protocol — one battery fits the full range without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through full charge and discharge on the IntelliFax platform. The BMS accepted the cell without fault codes, and charge termination triggered correctly at full capacity.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePre-session charging for portable fax use:\u003c\/strong\u003e\n    Charge the battery fully before starting a fax session. Portable fax machines spike current demand during the scanner warm-up and modem handshake phases simultaneously. A partially depleted cell can drop below the modem's minimum voltage threshold mid-handshake and abort the transmission before a single page clears.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the IntelliFax cuts out during modem handshake on battery power\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe IntelliFax-1960c draws current from three subsystems at once during transmission: the scanner, the thermal print head, and the modem. Ni-MH cells have a measurable internal resistance that rises as the cell ages or cools. When all three loads fire simultaneously, voltage at the cell terminals can sag below 3.2V — the modem's minimum stable operating point. The machine reads this as a line fault and drops the call. A fresh cell with low internal resistance sustains voltage above that threshold through the full handshake cycle.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBattery showing full charge but dying before transmission completes\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a capacity fade symptom, not a charging fault. Aged Ni-MH cells lose active material over time and report a full charge state while holding only a fraction of their original 700mAh. The battery indicator reads high because the BMS measures voltage, not true stored energy. Under the combined load of scanning and modem operation, the actual charge depletes quickly and voltage collapses. Replace the cell and verify the new battery charges to the full 3.6V nominal before the next session.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381523644506,"sku":"BWCS-PBT10MF-1","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381523677274,"sku":"BWCS-PBT10MF-2","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381523710042,"sku":"BWCS-PBT10MF-3","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PBT10MF-1.webp?v=1778901370","url":"https:\/\/batteryweb.com\/products\/brother-intellifax-1960c-replacement-battery-36v-700mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}