{"product_id":"euhr-eu340-smartsafe-replacement-battery-148v-450mah-li-polymer","title":"eUHR eU340 Smartsafe Replacement Battery 14.8V 450mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eeUHR eU340 Smartsafe — 14.8V Li-Polymer Replacement Battery (1100-000080)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 14.8V, 450mAh lithium-polymer battery replaces part number 1100-000080 in the eUHR eU340 Smartsafe. It powers the electronic locking mechanism and onboard smart connectivity functions. Dimensions are 36.50 × 29.20 × 20.40mm — confirm fit against the original cell before installing.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eeU340 Smartsafe compatibility:\u003c\/strong\u003e\n    The eU340 uses a 14.8V lithium-polymer cell with a specific connector and BMS handshake tied to the lock control board. This replacement matches the voltage rail and connector pinout that the lock controller expects on startup.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the eU340's startup sequence and confirmed the BMS negotiated correctly with the lock controller — no false low-voltage cutoff and no fault flag on the board.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install reconnection window:\u003c\/strong\u003e\n    After swapping the battery, wait at least 60 seconds before expecting the eU340 to reconnect to your smart home hub. The device runs a mesh network re-join sequence after any power interruption — forcing a reconnect before it completes will restart the sequence from zero.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eeU340 going offline immediately after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe eU340 re-initialises its network stack every time power is interrupted. If the device appears offline in your app right after a battery swap, this is expected — it is not a fault with the battery or the safe. The re-join sequence typically takes 30 to 60 seconds depending on hub load and mesh traffic. If the device does not come back online after 90 seconds, perform a manual reconnect through the app rather than swapping the battery again.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLow battery alert showing immediately after fitting a new cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLithium-polymer cells can self-discharge during storage — if this cell sat in a warehouse for several months, its resting voltage may sit below the eU340's alert threshold even though the cell itself is not damaged. Connect the safe to its charging source and let it run a full charge cycle before dismissing the alert. Once the cell reaches full charge voltage (nominally 16.8V across a 4S lithium-polymer pack at 4.2V per cell), the alert will clear automatically. Do not assume a fault until you have completed one full charge.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416146411610,"sku":"BWCS-WEU340SL-1","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416146444378,"sku":"BWCS-WEU340SL-2","price":31.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416146477146,"sku":"BWCS-WEU340SL-3","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-WEU340SL-1.webp?v=1779760485","url":"https:\/\/batteryweb.com\/products\/euhr-eu340-smartsafe-replacement-battery-148v-450mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}