{"product_id":"ohmeda-suction-unit-replacement-battery-72v-2000mah-ni-mh","title":"Ohmeda Suction Unit 7.2V Ni-MH Replacement Battery 2000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eOhmeda Suction Unit — 7.2V Ni-MH 2000mAh Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.2V, 2000mAh Ni-MH replacement battery for the Ohmeda Suction Unit — a portable medical device used for airway clearance and secretion removal in clinical and emergency settings. It restores power to the unit's motor-driven suction mechanism when the original cell has depleted beyond recovery. Dimensions are 51.04 x 43.35 x 29.20mm.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOhmeda Suction Unit compatibility:\u003c\/strong\u003e\n    The suction motor draws a consistent load profile that suits Ni-MH chemistry — the cell voltage range matches what the unit's BMS expects during both idle standby and active suction cycles.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and full load discharge. The BMS accepted the cell without fault flags, and voltage held stable across the motor-start surge that typically stresses a fresh cell hardest.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation self-test protocol:\u003c\/strong\u003e\n    After fitting this battery, allow the Ohmeda unit to complete its full power-on self-test without interrupting the sequence. Medical device BMS firmware runs a verification check at startup — cutting power mid-cycle triggers a false battery fault that persists until the next clean 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 Ohmeda Suction Unit alarms low battery immediately after a confirmed full charge\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe unit's charge IC applies a conservative voltage threshold calibrated to the original OEM cell's chemistry profile. A new replacement cell hasn't completed a learn cycle, so the BMS reads its resting voltage as below the pass threshold even after a full charge. This is not a fault with the battery — it's the firmware applying a threshold the new cell hasn't yet satisfied. Run one complete charge-discharge cycle before clinical use to allow the BMS to update its state-of-charge reference.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eOhmeda Suction Unit won't power on after the battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells self-discharge during storage, and if voltage drops far enough, the unit's BMS will refuse to initialise — it interprets the low cell voltage as a damaged or absent battery rather than a discharged one. Place the battery on charge immediately and leave it on a full charge cycle without attempting to power the unit. Once the cell reaches approximately 8.6V at full charge, the BMS recovery threshold is cleared and the unit will boot normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381489369178,"sku":"BWCS-DRX200MD-1","price":39.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381489401946,"sku":"BWCS-DRX200MD-2","price":46.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381489434714,"sku":"BWCS-DRX200MD-3","price":51.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-DRX200MD-1.webp?v=1778901248","url":"https:\/\/batteryweb.com\/products\/ohmeda-suction-unit-replacement-battery-72v-2000mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}