{"product_id":"nihon-kohden-olv-2700-monitor-replacement-battery-72v-2500mah-ni-mh","title":"Nihon Kohden OLV-2700 Monitor Replacement Battery 7.2V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eNihon Kohden OLV-2700 \/ OLG-2800 Monitor — 7.2V Ni-MH Replacement Battery (X072)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.2V, 2500mAh Ni-MH replacement battery for the Nihon Kohden OLV-2700 and OLG-2800 patient monitors. It replaces OEM part numbers X072 and YS-085P6. These monitors are used in clinical settings to display continuous vital signs data, and battery integrity directly affects their ability to operate during power transitions or transport.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOLV-2700 and OLG-2800 compatibility:\u003c\/strong\u003e\n    Both monitors share the same battery bay format, connector pinout, and BMS handshake protocol. The X072 cell spec — 7.2V Ni-MH at 2500mAh — applies to both units without modification or adapter.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through full charge-discharge cycles on bench equipment and logged the BMS charge acceptance and cutoff behaviour. The protection circuit responded within spec on both overcharge and low-voltage cutoff thresholds.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap self-test protocol:\u003c\/strong\u003e\n    After installing this battery, let the OLV-2700 or OLG-2800 complete its full power-on self-test without interruption. These monitors run a BMS verification sequence at startup — cutting power during that window causes a false battery fault that latches 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 OLV-2700 flags a battery fault after a confirmed full charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe OLV-2700 BMS stores an internal capacity model from the previous cell. When a new Ni-MH cell goes in, the monitor's charge IC applies a conservative acceptance threshold until it has logged one complete charge-discharge cycle. Until that cycle completes, the BMS has no calibrated baseline for the new cell's actual capacity curve. This is not a fault with the replacement — it is the monitor recalibrating. Run one full charge-discharge cycle before clinical deployment to clear the mismatch.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMonitor will not power on after replacement cell 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 OLV-2700's BMS enters a protection state that blocks normal startup. The monitor sees the low resting voltage as a potentially damaged or shorted cell and refuses to pass current to the load circuit. Connect the monitor to mains power first — this lets the charge IC deliver a low-rate recovery charge before the BMS re-evaluates the cell. Once resting voltage recovers above approximately 6.0V, the monitor will complete its boot sequence normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381469708378,"sku":"BWCS-NKX072MD-1","price":51.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381469741146,"sku":"BWCS-NKX072MD-2","price":60.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381469773914,"sku":"BWCS-NKX072MD-3","price":67.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NKX072MD-1.webp?v=1778901067","url":"https:\/\/batteryweb.com\/products\/nihon-kohden-olv-2700-monitor-replacement-battery-72v-2500mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}