{"product_id":"cardiomonitor-comen-star-8000-replacement-battery-108v-3400mah-li-ion","title":"COMEN Star 8000 Compatible Battery 10.8V 3400mAh 022-000084-00","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCardiomonitor COMEN Star 8000 \/ Star 8000 E — 10.8V Li-ion Replacement Battery (022-000084-00)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 10.8V, 3400mAh (36.72Wh) lithium-ion battery for the COMEN Star 8000 and Star 8000 E patient monitors. These monitors display ECG waveforms and vital signs in clinical observation settings. This battery slots into those units as a direct cell replacement when the original pack degrades or a backup unit is needed for continuous monitoring.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eStar 8000 and Star 8000 E compatibility:\u003c\/strong\u003e\n    Both models use the same 10.8V three-cell Li-ion pack configuration and share the same BMS handshake protocol. The connector pinout and charge IC communication line are identical across both variants, so a single battery SKU covers the pair.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through charge and discharge cycles on a COMEN Star 8000 unit. The BMS completed its verification sequence without fault flags, accepted charge to full capacity, and maintained stable output voltage across the monitor's normal load profile.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap self-test requirement:\u003c\/strong\u003e\n    After installing this battery, allow the monitor to complete its full power-on self-test without interruption. Cutting power during the startup BMS verification sequence triggers a false battery fault that persists until the next complete reboot — it is not a cell defect.\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 COMEN Star 8000 runs a BMS learn cycle during its first few charge-discharge sequences on a new cell. A new battery that has not completed this cycle may cause the monitor to stall mid-boot or flag a battery error on the status screen. This is not a fault with the replacement pack — the charge IC is applying conservative limits while it characterises the new cells. Run one complete charge-discharge cycle before placing the unit into clinical use, and the boot sequence will complete normally on subsequent power-ons.\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 alarm fires when the BMS threshold check runs at startup and the new cell's state-of-charge reading sits below the OEM calibration reference — not because the battery is actually low. The monitor's charge IC stores a learned capacity baseline from the previous pack, and a new cell won't match that baseline until it has completed one full cycle. Charge the battery to 100%, allow the monitor to run until it reaches approximately 10.8V under load, then recharge fully. After that conditioning cycle, the alarm clears and the charge gauge reads correctly.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381446901850,"sku":"BWCS-CMS800MX-1","price":42.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381446934618,"sku":"BWCS-CMS800MX-2","price":49.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381446967386,"sku":"BWCS-CMS800MX-3","price":54.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CMS800MX-1.webp?v=1778900876","url":"https:\/\/batteryweb.com\/products\/cardiomonitor-comen-star-8000-replacement-battery-108v-3400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}