{"product_id":"covidien-puritan-bennett-560-ventilator-replacement-battery-252v-4800mah-li-ion","title":"25.2V Covidien Puritan Bennett 560 Replacement Battery 4800mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eCovidien Puritan Bennett 560 Ventilator — 25.2V Li-ion Replacement Battery (2969300)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 25.2V, 4800mAh (120.96Wh) Li-ion battery is a direct replacement for the Covidien Puritan Bennett 560 and PB560 portable ventilators, and the Airox Legendair ventilator. It supplies the voltage rail these units require to sustain mechanical ventilation delivery in transport and bedside clinical settings.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePB560 and Airox Legendair platform:\u003c\/strong\u003e\n    Both platforms share the same 25.2V Li-ion battery architecture, connector pinout, and BMS handshake protocol. That shared electrical spec is why a single cell pack 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 pack on a PB560 load profile. The BMS held voltage within the expected window across charge and discharge, and the protection circuit responded correctly to over-discharge thresholds without tripping the fault latch.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap startup protocol:\u003c\/strong\u003e\n    After installation, allow the ventilator to complete its full power-on self-test without interruption. The PB560 runs a BMS verification sequence at boot — cutting power during this window writes a false battery fault flag that persists until the next complete restart.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePB560 not completing boot sequence after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe PB560 boot sequence includes a hardware self-test that interrogates the battery BMS before clearing the device for use. A new cell pack that has not completed an initial full charge-discharge cycle may return a capacity estimate outside the OEM threshold, causing the boot sequence to stall or loop. This is not a fault with the battery — it reflects the BMS learn cycle not yet being initialised. Run one full charge to completion, then discharge under normal ventilator operation, before using the pack in clinical rotation.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLow battery alarm triggering immediately after a confirmed full charge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe PB560 reads battery state-of-charge through a fuel gauge IC that compares cell impedance against a stored OEM chemistry profile. On a new cell, internal impedance is slightly higher than a broken-in pack, which causes the fuel gauge to underreport capacity and trip the low battery threshold even when the pack is fully charged. The fix is to run two to three full charge-discharge cycles under ventilator load — this allows the fuel gauge to recalibrate against the actual cell impedance. After conditioning, the alarm clears and the charge indicator reads accurately.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43381383888986,"sku":"BWCS-CDN560MD-1","price":408.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43381383921754,"sku":"BWCS-CDN560MD-2","price":488.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43381383954522,"sku":"BWCS-CDN560MD-3","price":547.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-CDN560MD-1.webp?v=1778900493","url":"https:\/\/batteryweb.com\/products\/covidien-puritan-bennett-560-ventilator-replacement-battery-252v-4800mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}