{"product_id":"aricon-m-9000e-replacement-battery-74v-5200mah-li-ion","title":"Aricon M-9000E Replacement Battery 7.4V 5200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAricon M-9000E — 7.4V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 7.4V 5200mAh Li-ion battery replaces the original power cell in the Aricon M-9000E portable patient monitor. It fits both the M-9000E and M9000E variants. Capacity is rated at 38.48Wh and matches the voltage rail the device expects from the factory cell.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eM-9000E and M9000E compatibility:\u003c\/strong\u003e\n    Both model designations share the same battery bay, connector pinout, and BMS handshake protocol. The internal charge management circuit reads cell chemistry and voltage range — this replacement sits within those parameters.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge, load, and BMS query sequences on the M-9000E platform. The BMS accepted the cell without fault flags, and the device completed its power-on self-test without error codes on each cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-installation self-test protocol:\u003c\/strong\u003e\n    After fitting this battery, let the M-9000E complete its full power-on self-test without interruption. Medical-grade BMS firmware runs a startup verification sequence — cutting power during that window logs a battery fault that persists until the next clean reboot cycle.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDevice not completing boot sequence after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe M-9000E boot sequence includes a battery qualification check that compares cell voltage against a stored threshold. A new Li-ion cell shipped at partial state of charge may present a resting voltage around 3.6–3.7V per cell, which can sit below the device's minimum boot threshold. Charge the replacement fully before first boot — the pack should read at or above 8.2V at the battery terminals before installation. If the device stalls mid-boot after that, pull the battery, wait 30 seconds, refit, and allow the full POST cycle to complete uninterrupted.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLow battery alarm triggers immediately after a confirmed full charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the M-9000E BMS compares charge cycle history against a baseline calibrated to the original OEM cell. A replacement cell with zero cycle history hasn't yet built that baseline, so the BMS applies a conservative capacity estimate and triggers the alarm early. Run one complete charge-to-discharge-to-charge cycle under normal clinical load before relying on the battery status indicator. After that conditioning cycle, the BMS recalibrates its state-of-charge model and the alarm threshold returns to the correct cutoff point.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381404729434,"sku":"BWCS-ACG900MD-1","price":73.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381404762202,"sku":"BWCS-ACG900MD-2","price":87.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381404794970,"sku":"BWCS-ACG900MD-3","price":97.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ACG900MD-1.webp?v=1778900597","url":"https:\/\/batteryweb.com\/products\/aricon-m-9000e-replacement-battery-74v-5200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}