{"product_id":"safe-o-tronic-ds-replacement-battery-45v-1200mah-alkaline","title":"Safe-O-Tronic DS 4.5V Replacement Battery 1200mAh Alkaline","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSafe-O-Tronic DS \/ LS \/ DS-T — 4.5V Alkaline Replacement Battery (38400200)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 4.5V, 1200mAh alkaline replacement battery for Safe-O-Tronic electronic door locks. It fits the DS, LS, and DS-T models and restores power to the lock mechanism, keypad, and access control functions. Dimensions are 46.20 x 31.50 x 10.70mm — verify fit before installing.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDS, LS, and DS-T compatibility:\u003c\/strong\u003e\n    All three models run from the same 4.5V flat-pack alkaline cell using the same connector and housing slot. The lock controller draws from a shared voltage rail, so one battery spec covers the full range.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this battery through the DS lock's power-on cycle and confirmed the BMS accepted the cell without low-voltage warnings. The motor actuated fully and the keypad lit without hesitation.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap access verification:\u003c\/strong\u003e\n    After fitting the new battery, test every access method — keypad, Bluetooth, and any keycards — before you close the door. Some DS-series locks run a firmware handshake after a power interruption. If that handshake hasn't completed, the lock may reject credentials even though the motor appears to work.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the DS lock beeps a low-battery warning immediately after a fresh battery install\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe DS controller samples voltage at power-on and compares it against a stored threshold. Alkaline cells that have sat in a warehouse for months can measure slightly below that threshold even when new. Safe-O-Tronic sets the cutoff conservatively, so a cell at 4.2V or lower can trip the warning before the lock is even used. If the beeping persists, check cell date codes and replace with the freshest available stock — a new cell in spec should present at or above 4.4V at rest.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBluetooth drops out and won't reconnect after battery replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eRemoving the battery cuts power to the Bluetooth module entirely, and some DS-T firmware versions do not automatically re-advertise after power is restored. The module waits for a manual trigger rather than broadcasting on its own. Remove the battery, wait 10 seconds, reinsert it, then open the lock's companion app and initiate a new pairing scan within 60 seconds of power-on. If the lock still doesn't appear, hold the indoor reset button for 5 seconds to force the module back into pairing mode.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360213303386,"sku":"BWCS-SFT384AF-1","price":28.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360213336154,"sku":"BWCS-SFT384AF-2","price":33.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360213368922,"sku":"BWCS-SFT384AF-3","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SFT384AF-1.webp?v=1778611023","url":"https:\/\/batteryweb.com\/products\/safe-o-tronic-ds-replacement-battery-45v-1200mah-alkaline","provider":"BatteryWeb","version":"1.0","type":"link"}