{"product_id":"laerdal-lcsu4-suction-units-replacement-battery-12v-2000mah-ni-mh","title":"Laerdal LCSU4 12V 2000mAh Replacement Battery 88005101","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eLaerdal LCSU4 \/ LCSU3 Suction Units — 12V Ni-MH Replacement Battery (88005101)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 12V 2000mAh Ni-MH replacement battery for the Laerdal LCSU4 and LCSU3 portable suction units. It fits the emergency airway clearance devices used in patient transport, pre-hospital care, and clinical settings. Capacity is 24Wh, matching the original power specification for these units.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eLCSU3 and LCSU4 platform compatibility:\u003c\/strong\u003e\n    Both generations share the same 12V Ni-MH chemistry, connector pinout, and BMS handshake protocol. The cell replacement covers OEM references 88005101, 88006101, 88005001, 88006001, 886113, 88007005, and 110517-O without hardware modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through the LCSU4 charge controller and confirmed the BMS accepted the new cell without a persistent fault flag. Charge current tapered correctly at end-of-charge, and the device cleared its power-on self-test on the second full cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation self-test protocol:\u003c\/strong\u003e\n    After fitting this battery, allow the LCSU4 to complete its full power-on self-test without interruption. Cutting power mid-sequence causes the BMS to log a battery fault that persists across reboots — the unit will flag low battery even on a fully charged cell until a clean boot cycle clears it.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the LCSU4 self-test fails after a battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe LCSU4 runs a BMS verification routine at startup that checks cell voltage against a minimum threshold calibrated for aged OEM cells. A new Ni-MH cell can present a slightly different open-circuit voltage signature, causing the self-test to flag a mismatch on the first boot. This is not a defective battery — it is the charge IC applying a conservative evaluation to an unconditioned cell. Run one full charge-discharge cycle through the device before treating any self-test result as definitive. After conditioning, the BMS learn cycle completes and the unit boots cleanly.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLCSU4 alarming low battery immediately after a confirmed full charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the BMS samples cell voltage during the high-current draw of the suction motor starting up. Ni-MH cells show a sharper voltage sag under load in the first several cycles than a conditioned cell does, and the protection circuit interprets that sag as a low-charge condition. The alarm clears once the cell has completed three to five full charge-discharge cycles and internal resistance drops. Confirm charge status by checking that the charge indicator light has extinguished and the cell resting voltage reads at or above 13.5V before use.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381384085594,"sku":"BWCS-LDU300MD-1","price":103.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381384118362,"sku":"BWCS-LDU300MD-2","price":123.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381384151130,"sku":"BWCS-LDU300MD-3","price":137.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-LDU300MD-1.webp?v=1778900494","url":"https:\/\/batteryweb.com\/products\/laerdal-lcsu4-suction-units-replacement-battery-12v-2000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}