{"product_id":"edan-im3-replacement-battery-111v-3400mah-li-ion","title":"Edan IM3 Patient Monitor Replacement Battery 11.1V 3400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eEdan IM3 \/ IM20 Series — 11.1V Li-ion Replacement Battery (21.21.064213-11)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 11.1V 3400mAh Li-ion battery for the Edan IM3, IM12, IM20, and iM20 Transport Patient Monitor series. It replaces OEM part numbers 21.21.064213-11 and TWSLB-012. These monitors are portable clinical vital signs units — ECG, SpO2, NIBP, temperature — and this battery is what keeps them running away from wall power.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIM3 \/ IM12 \/ IM20 platform compatibility:\u003c\/strong\u003e\n    These models share a common battery bay, connector pinout, and BMS handshake protocol across the series. The same 11.1V three-cell Li-ion configuration satisfies the charge IC and power management firmware across all listed variants.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through a full charge-discharge cycle on IM-series hardware. The BMS accepted the new cell without fault flags, the charge IC ramped correctly through CC\/CV stages, and the protection circuit responded accurately to load transitions during the monitor's active display and alarm cycles.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation self-test cycle:\u003c\/strong\u003e\n    After fitting this battery, let the monitor complete its full power-on self-test without interruption. The IM series runs a BMS verification sequence at boot — cutting power mid-sequence writes a battery fault to the device log 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\"\u003eIM3 alarming low battery immediately after a confirmed full charge\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe IM3's charge IC calibrates its capacity estimate against the OEM cell's known chemistry profile. A new replacement cell hasn't yet built a discharge history the BMS can reference, so the state-of-charge algorithm reads conservatively and triggers the low-battery threshold early. This is not a defective cell. Run one complete charge-to-discharge-to-full-recharge cycle under normal monitor load before trusting the battery indicator. After that conditioning cycle, the BMS recalibrates and the alarm threshold maps correctly to actual cell capacity.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMonitor will not power on after the replacement battery was stored before installation\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells self-discharge during storage at roughly 2–3% per month. If the cell dropped below the IM series BMS recovery threshold — typically around 9V for an 11.1V three-cell pack — the protection circuit latches off and blocks output entirely. Connect the monitor to mains power first, not the battery alone. The charger circuit can push a pre-charge recovery current into a latched pack that the device's own power rail cannot. Leave it on mains for at least 30 minutes before attempting to boot on battery power.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381457223770,"sku":"BWCS-EDM200MX-1","price":69.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381457256538,"sku":"BWCS-EDM200MX-2","price":82.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381457289306,"sku":"BWCS-EDM200MX-3","price":91.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-EDM200MX-1.webp?v=1778900983","url":"https:\/\/batteryweb.com\/products\/edan-im3-replacement-battery-111v-3400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}