{"product_id":"huntleigh-monitor-smartsigns-lite-plus-replacement-battery-84v-7600mah-ni-mh","title":"Huntleigh Monitor Smartsigns Lite Plus 8.4V Replacement Battery","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eHuntleigh Monitor Smartsigns Lite Plus — 8.4V Ni-MH Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 8.4V 7600mAh Ni-MH replacement battery for the Huntleigh Smartsigns Lite Plus portable patient monitor. It fits the wall-socket and mobile clinical configurations used in wards and acute care settings. Voltage and capacity match the original cell format exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSmartsigns Lite Plus platform fit:\u003c\/strong\u003e\n    The Smartsigns Lite Plus uses an 8.4V Ni-MH cell pack because the monitor's internal voltage rails and charge IC are calibrated for Ni-MH charge curves — not Li-ion. Swapping chemistry causes charge faults. This cell matches that requirement.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran the battery through the Smartsigns Lite Plus power-on sequence and verified the BMS completed its self-test cycle without triggering a low-battery alarm. Charge acceptance was confirmed across a full charge-to-cutoff cycle before listing.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation self-test protocol:\u003c\/strong\u003e\n    After fitting this battery, let the monitor complete its full power-on self-test without powering it off mid-sequence. The Smartsigns Lite Plus runs a BMS verification check at boot — interrupting it logs 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 Smartsigns Lite Plus alarms low battery immediately after a confirmed full charge\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe monitor's BMS stores a capacity baseline from the previous cell and compares it against the new one on first boot. A fresh Ni-MH cell has not yet completed a conditioning cycle, so its internal resistance reads higher than the OEM threshold. The monitor interprets this as a degraded cell and triggers the alarm even though the cell is fully charged. One complete charge-discharge cycle resets the learned baseline and clears the alarm on subsequent boots.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMonitor will not power on after the replacement battery sat 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 cell stored for several months can drop below the 6.0V BMS recovery threshold the Smartsigns Lite Plus uses to detect a viable power source. The monitor will not attempt to boot below that threshold — it will appear completely dead. Place the battery on a standalone Ni-MH charger to bring it above 7.2V, then reinstall and power on.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381462630490,"sku":"BWCS-NPY100MD-1","price":116.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381462663258,"sku":"BWCS-NPY100MD-2","price":134.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381462696026,"sku":"BWCS-NPY100MD-3","price":147.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NPY100MD-1.webp?v=1778900983","url":"https:\/\/batteryweb.com\/products\/huntleigh-monitor-smartsigns-lite-plus-replacement-battery-84v-7600mah-ni-mh","provider":"BatteryWeb","version":"1.0","type":"link"}