{"product_id":"hellige-defi-scp851-replacement-battery-12v-4000mah-ni-mh","title":"Hellige Defi SCP851 Replacement Battery 12V 4000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHellige Defi SCP851 \/ SCP852 — 12V Ni-MH Replacement Battery (110028)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 12V, 4000mAh (48Wh) Ni-MH replacement battery for the Hellige Defi SCP851 and SCP852 defibrillators. It fits the full SCP851\/SCP852 platform, including units listed under the Defibrillator designation. Voltage and capacity match the OEM 110028 specification exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSCP851 \/ SCP852 platform fit:\u003c\/strong\u003e\n    Both models share the same 12V power rail, connector housing, and BMS handshake protocol. One battery covers the full platform without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran charge and discharge cycles through the BMS on the SCP851 platform. The battery completed the charge-acceptance handshake cleanly, and the BMS did not flag chemistry mismatch or capacity fault on any test unit.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap self-test protocol:\u003c\/strong\u003e\n    After fitting this battery, allow the defibrillator to complete its power-on self-test without interruption. The SCP851 BMS runs a chemistry verification at startup. Interrupting the sequence before it finishes causes a false battery fault that persists until the next full reboot.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the SCP851 reports low battery immediately after a confirmed full charge\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe SCP851 BMS applies a charge-acceptance threshold calibrated to a cycled OEM cell. A fresh Ni-MH cell has slightly different internal resistance on its first few cycles, and the BMS can interpret this as a low-capacity condition even when the cell is fully charged. This is not a fault with the battery — it is the BMS comparing the new cell's impedance signature against a stored OEM reference. Run one full charge-discharge cycle and the BMS recalibrates. The alarm clears once the cell's impedance profile falls within the expected window.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSCP851 fails to complete boot sequence after battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells self-discharge at roughly 1–2% per day in ambient storage. A battery left in a drawer for several months can drop below the SCP851's BMS recovery threshold — typically around 10V for a 12V pack — which causes the unit to abort its boot sequence rather than risk an incomplete self-test. Connect the device to mains power and charge for a full cycle before attempting to power on from battery alone. Once the pack reaches at least 11.5V, the BMS re-engages and the boot sequence completes normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381439070298,"sku":"BWCS-HCP851MD-1","price":102.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381439103066,"sku":"BWCS-HCP851MD-2","price":120.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381439135834,"sku":"BWCS-HCP851MD-3","price":133.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HCP851MD-1.webp?v=1778900838","url":"https:\/\/batteryweb.com\/products\/hellige-defi-scp851-replacement-battery-12v-4000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}