{"product_id":"northern-venus-replacement-battery-111v-4800mah-li-ion","title":"Northern Venus Medical Device Replacement Battery 11.1V 4800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eNorthern Venus \/ Taurus — 11.1V Li-ion Replacement Battery (NT-L13S2P-PA)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 11.1V, 4800mAh Li-ion replacement battery for the Northern Venus and Taurus portable medical devices. It matches the OEM part number NT-L13S2P-PA and fits both platforms directly. Capacity is rated at 53.28Wh from the product specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eVenus and Taurus platform fit:\u003c\/strong\u003e\n    Both devices run the same 11.1V three-cell Li-ion architecture and share the NT-L13S2P-PA connector and BMS handshake profile. One battery SKU covers both units without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through full charge and discharge on bench equipment, confirming BMS communication, cell balancing across all three cells, and correct charge termination at 12.6V. No anomalies were logged.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePower-on self-test sequence:\u003c\/strong\u003e\n    After installation, let the device complete its full startup self-test without interruption. The BMS runs a verification pass at power-on — cutting power mid-sequence registers 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\"\u003eDevice not completing boot sequence on new battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Venus and Taurus both run a BMS verification step during boot before handing control to the main firmware. A new cell that has partially self-discharged during storage may sit below the minimum voltage the device expects to see at that stage. The device interprets a low cell voltage as a fault and halts the boot rather than proceeding to the home screen. Charge the battery fully to 12.6V before the first installation, then power on without interrupting the startup sequence.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharge indicator not reaching 100% on first charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eOn a first charge cycle, the device's charge IC applies a conservative current limit to a new cell — this is normal behaviour, not a fault. The fuel gauge reports capacity based on a baseline it has not yet calibrated against this specific cell, so it may read 95–98% and stop climbing. Run one complete charge-discharge-charge cycle and the gauge recalibrates against actual cell capacity. After that cycle the indicator will reach 100% consistently.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381394309210,"sku":"BWCS-NRT132MD-1","price":130.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381394341978,"sku":"BWCS-NRT132MD-2","price":154.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381394374746,"sku":"BWCS-NRT132MD-3","price":172.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NRT132MD-1.webp?v=1778900564","url":"https:\/\/batteryweb.com\/products\/northern-venus-replacement-battery-111v-4800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}