{"product_id":"becker-hazard-control-replacement-battery-108v-2600mah-li-ion","title":"Becker Hazard Control 10.8V 2600mAh Compatible Battery","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBecker HC520 \/ Hazard Control — 10.8V Li-ion Replacement Battery (4807 040 002)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 10.8V 2600mAh Li-ion battery replaces the original cell in Becker Hazard Control devices, including the HC520, P10-11-M19, and 2447-3007-520 series. It matches the OEM voltage and capacity to restore normal operation of the cordless safety monitoring unit. Capacity figures are taken from the product data — 28.08Wh total energy.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHC520 and related models:\u003c\/strong\u003e\n    These units share the same 10.8V three-cell architecture and battery connector format. The BMS handshake protocol and communication lines are identical across the HC520, P10-11-M19, and 2447-3007-520 platforms, so one cell works across all listed variants.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through charge and discharge on the HC520 platform. The BMS reported cell balance within spec and the protection circuit responded correctly to both over-voltage and low-voltage cutoff thresholds.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eMesh re-join after swap:\u003c\/strong\u003e\n    After fitting a new cell, wait at least 60 seconds before assuming something is wrong. Becker Hazard Control units run a network re-join sequence on every power interruption — the device is not frozen, it is negotiating its place in the mesh.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the HC520 goes offline immediately after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eCutting power to the HC520 — even briefly — triggers a full network re-initialisation. The device broadcasts a re-join request to the hub, but the hub must acknowledge it before the unit shows as online. On congested mesh networks with several nodes, this handshake can take 45 to 90 seconds. If the device is still offline after two minutes, press and hold the function button for five seconds to force a manual re-join attempt.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eNew battery triggers an immediate low-battery alert on the Hazard Control unit\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA replacement Li-ion cell shipped from storage can sit at 3.5V per cell — below the alert threshold the HC520 uses to flag a low-battery condition. The device reads voltage at boot and fires the alert before the cell has had a chance to charge. Connect the unit to its charger and let it run for at least one full charge cycle. The alert clears once the pack crosses approximately 11.1V under the device's own load measurement.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416142708826,"sku":"BWCS-BHC520AF-1","price":40.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416142741594,"sku":"BWCS-BHC520AF-2","price":47.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416142774362,"sku":"BWCS-BHC520AF-3","price":52.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BHC520AF-1.webp?v=1779760467","url":"https:\/\/batteryweb.com\/products\/becker-hazard-control-replacement-battery-108v-2600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}