{"product_id":"comen-v3a-replacement-battery-144v-6700mah-li-ion","title":"COMEN V3A Patient Monitor Replacement Battery 14.4V 6700mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCOMEN V3A \/ V3 Series — 14.4V Li-ion Replacement Battery (CMLI2X4I001B)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.4V, 6700mAh lithium-ion battery for the COMEN V3A and V3 portable patient monitors. These monitors display ECG, SpO2, NIBP, and temperature — all of which rely on uninterrupted DC power when the unit is off-grid or being transported between wards. This cell replaces OEM part CMLI2X4I001B at matching voltage and capacity.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eV3A and V3 platform fit:\u003c\/strong\u003e\n    Both models use the same battery bay, connector pinout, and BMS communication protocol. The V3A adds a slightly expanded display set, but the power architecture is shared — one battery covers both.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through full charge and load cycles on a V3A unit. The onboard BMS accepted the cell, completed charge handshake without fault flags, and held voltage within spec under the combined sensor and display load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap self-test protocol:\u003c\/strong\u003e\n    After fitting this battery, allow the V3A to complete its full power-on self-test without interrupting it. The device runs a BMS verification step at boot — cutting power during this sequence stores 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 V3A reports a battery fault immediately after a confirmed full charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe V3A's BMS compares cell internal resistance and charge acceptance against stored OEM thresholds at startup. A new replacement cell has not yet completed a full charge-discharge learn cycle, so its resistance profile sits outside the narrow window the BMS expects. The monitor flags this as a fault even when the cell is genuinely at full capacity. Running one complete charge-discharge cycle — charging to 100% and allowing the device to draw the cell down under normal use — resets the BMS baseline and clears the fault on the next boot.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharge indicator stalling below 100% on first charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eOn the first charge cycle, the V3A's charge IC applies a conservative current limit to an unrecognised cell, which causes the charge indicator to plateau between 85% and 95% without climbing further. This is the IC protecting the new cell, not a fault in the battery. Disconnect the charger, power the unit on to draw the cell down slightly, then reconnect and allow a second full charge. The IC recalibrates on the second pass and the indicator reaches 100%.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381401682010,"sku":"BWCS-CGS310MD-1","price":480.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381401714778,"sku":"BWCS-CGS310MD-2","price":574.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381401747546,"sku":"BWCS-CGS310MD-3","price":644.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CGS310MD-1.webp?v=1778900536","url":"https:\/\/batteryweb.com\/products\/comen-v3a-replacement-battery-144v-6700mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}