{"product_id":"saflok-54490-replacement-battery-6v-2300mah-alkaline","title":"Saflok 54490 6V Replacement Battery 2300mAh Alkaline","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSaflok 54490 \/ DL-2 Series — 6V Alkaline Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 6V alkaline replacement battery rated at 2300mAh (13.8Wh) for Saflok electronic door locks. It fits the 54490, 884955, DL-2, EDL4AS, and additional models in the same series. The voltage and form factor match the original cell that powers the lock's motor, keypad, and access control logic.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSaflok 54490 and DL-2 series fit:\u003c\/strong\u003e\n    These locks share the same 6V battery bay, connector orientation, and BMS threshold. The lock's control board reads supply voltage on startup — feeding it the wrong voltage or a partially drained cell will trigger a fault state before the motor receives a command.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell on a DL-2 unit and confirmed the control board accepted the battery without a fault flag. The motor completed a full lock and unlock cycle, and the keypad acknowledged input correctly throughout.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap access verification:\u003c\/strong\u003e\n    After fitting this battery, test every access method — keypad code, keycard, and any Bluetooth credential — before closing the door. Some Saflok units run a firmware handshake after a power interruption, and the lock may not accept all access methods until that sequence completes.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Saflok DL-2 shows a low-battery warning immediately after a fresh install\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Saflok control board samples supply voltage within the first few seconds of power-up. If the cell voltage reads below the lock's internal threshold — typically around 5.4V — the low-battery flag triggers regardless of capacity. Alkaline cells sitting in storage can drop to 5.6–5.8V open-circuit, which passes the shelf test but trips the threshold under the motor's startup load. Always use freshly sourced alkaline cells and confirm the open-circuit voltage reads at or above 6V before fitting.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLock motor moves slowly or fails to fully retract the bolt after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA slow or stalled bolt is almost always a voltage sag issue, not a mechanical fault. When the motor draws peak current to move the bolt, a weak cell's voltage collapses mid-cycle and the control board cuts power to protect the circuit. This can look like a seized mechanism but clears once you fit a cell at full 6V. Check the replacement cell with a multimeter before installing — anything below 5.8V under no load is already too depleted for reliable motor operation.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360203079770,"sku":"BWCS-SDL210SL-1","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360203112538,"sku":"BWCS-SDL210SL-2","price":42.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360203145306,"sku":"BWCS-SDL210SL-3","price":47.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SDL210SL-1.webp?v=1778610959","url":"https:\/\/batteryweb.com\/products\/saflok-54490-replacement-battery-6v-2300mah-alkaline","provider":"BatteryWeb","version":"1.0","type":"link"}