{"product_id":"rigel-uni-sim-vital-signs-simulator-replacement-battery-72v-2500mah-ni-mh","title":"Rigel 110847 Uni-Sim Replacement Battery 7.2V 2500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eRigel Uni-Sim Vital Signs Simulator — 7.2V Ni-MH Replacement Battery (110847)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.2V 2500mAh Ni-MH replacement battery for the Rigel Uni-Sim Vital Signs Simulator, OEM part number 110847. It fits the Uni-Sim directly and restores power to the simulator during clinical education sessions. Capacity is rated at 2500mAh (18Wh), matching the original specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eUni-Sim platform fit:\u003c\/strong\u003e\n    The Uni-Sim draws a stable low-current load across its display and sensor simulation circuits. This replacement uses the same 7.2V Ni-MH cell configuration and connector pinout as the OEM pack, so the device BMS recognises it without manual pairing or software intervention.\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 load on the Uni-Sim platform. The BMS completed its self-test sequence without fault flags, and cell voltage held above the low-battery cutoff threshold throughout the discharge curve at normal simulator load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap self-test protocol:\u003c\/strong\u003e\n    After fitting this battery, let the Uni-Sim complete its full power-on self-test without interrupting or cycling power. The device runs a BMS verification routine at startup — cutting power mid-sequence can register 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 Uni-Sim triggers a low-battery alarm with a freshly charged replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Uni-Sim BMS is calibrated to the charge profile of a conditioned OEM cell. A new Ni-MH cell has not yet established full capacity and its internal resistance reads higher than a broken-in pack. The BMS interprets this elevated resistance as a partially discharged cell and raises the alarm even when the pack is at full charge. Running one complete charge-discharge-recharge cycle on the Uni-Sim normalises the cell parameters the BMS reads against. After that cycle, the alarm clears under normal operating conditions.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eUni-Sim won't power on after the battery sat unused in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eNi-MH cells self-discharge at roughly 1–2% per day at room temperature. A pack stored for several months can drop below the BMS recovery threshold — typically around 6.0V for a 7.2V six-cell pack — at which point the device refuses to boot rather than risk running on an unstable supply. Place the battery on charge for a full uninterrupted cycle before reinstalling it. If the charger does not recognise the deeply discharged pack, most Ni-MH chargers have a recovery or force-start mode that applies a trickle charge at around 0.1C to bring the cell voltage back above the detection floor before switching to normal charge rate.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381375238234,"sku":"BWCS-RGV847MD-1","price":53.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381375271002,"sku":"BWCS-RGV847MD-2","price":63.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381375303770,"sku":"BWCS-RGV847MD-3","price":70.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-RGV847MD-1.webp?v=1778900449","url":"https:\/\/batteryweb.com\/products\/rigel-uni-sim-vital-signs-simulator-replacement-battery-72v-2500mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}