{"product_id":"saflock-a28980-replacement-battery-36v-2700mah-ni-mh","title":"Saflock A28980 Door Lock Replacement Battery 3.6V 2700mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSaflock A28980 — 3.6V Ni-MH Replacement Battery (DL-48)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.6V 2700mAh Ni-MH battery built to the DL-48 specification for the Saflock A28980 electronic door lock. It fits residential and commercial access control installations where the original cell has depleted and the lock has stopped responding or begun signalling low power. Voltage and capacity match the original pack exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eA28980 compatibility:\u003c\/strong\u003e\n    The A28980 lock draws from a single 3.6V Ni-MH cell. The DL-48 format matches the original connector, physical envelope (50.60 × 51.00 × 17.00mm), and voltage rail. Substituting a different chemistry or voltage will trip the lock's internal protection circuit.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through the A28980 lock's power-on sequence and confirmed the BMS accepted the charge state without fault codes. Motor engagement, keypad polling, and standby draw all registered within normal parameters.\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, Bluetooth app, and any programmed keycards — before closing the door. The A28980 may need to complete a firmware handshake after power interruption before all credential types are accepted.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the A28980 stays unresponsive after a fresh battery install\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells supplied in long-term storage can sit at 3.2V or below. The A28980 lock requires a minimum voltage threshold before it will initialise its control board. If the cell voltage is too low on first insert, the lock draws nothing visible and appears dead. Remove the battery, charge it externally to at least 3.5V, then reinsert — the lock should complete its boot sequence within 10 seconds.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLow battery warning persists immediately after fitting the new DL-48\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe A28980 reads cell voltage at the moment of insertion. A new Ni-MH battery fresh from packaging may read lower than 3.4V due to self-discharge during storage. The lock interprets anything below its threshold as a depleted cell and continues beeping. Connect the battery to a Ni-MH compatible charger, bring it to a full charge cycle, then reinstall. The warning should clear once the lock reads voltage above 3.5V on next power-on.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360207601754,"sku":"BWCS-DRL480SL-1","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360207634522,"sku":"BWCS-DRL480SL-2","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360207667290,"sku":"BWCS-DRL480SL-3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DRL480SL-1.webp?v=1778610940","url":"https:\/\/batteryweb.com\/products\/saflock-a28980-replacement-battery-36v-2700mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}