{"product_id":"3m-tr-300-powered-air-respirator-replacement-battery-126v-4000mah-li-ion","title":"3M TR-830 Powered Air Respirator Replacement Battery 12.6V 4000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003e3M TR-300+ \/ TR-800 PAPR — 12.6V Li-ion Replacement Battery (TR-830)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 12.6V 4000mAh (50.4Wh) Li-ion battery replaces the OEM TR-830 pack in the 3M TR-300+ Powered Air Respirator, TR-800 PAPR, and Versaflo Intrinsically Safe units. It powers the motorized blower unit that delivers filtered air to the respirator hood. Capacity figures are from product data — do not rely on web listings that cite conflicting numbers.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTR-300+, TR-800, and Versaflo IS compatibility:\u003c\/strong\u003e\n    These three units share the same 12.6V three-cell Li-ion architecture, the same battery bay connector, and the same BMS handshake protocol — which is why a single TR-830-format pack covers all three platforms without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through blower motor start-up cycles on the TR-300+ and TR-800. The BMS handled the inrush current at motor start without tripping into overcurrent lockout, and the pack held stable voltage under sustained blower load throughout the test session.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install blower calibration:\u003c\/strong\u003e\n    After fitting this battery, run the airflow check cycle from the unit's control menu before entering a hazardous area. The PAPR maps available capacity during that cycle — skipping it can cause the low-battery indicator to trigger early during the first shift, even with a full charge.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the TR-300+ blower cuts out on motor start despite a charged pack\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe TR-300+ blower motor draws a short inrush current spike at start-up that can exceed the overcurrent threshold of a degraded or poorly matched BMS. When that threshold trips, the pack shuts output before the motor reaches running speed — the unit goes dark even though the battery shows charge. A fresh pack with a correctly rated BMS clears this. If the problem persists after fitting a new battery, check that the battery bay contacts are clean and seating fully, as a high-resistance connection amplifies the apparent current spike seen by the BMS.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePack will not charge after the PAPR sat unused for several months\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells that self-discharge below approximately 2.5V per cell (7.5V total for a 3S pack) cause the BMS to enter deep-discharge lockout — the charger sees no response and the unit will not power on. Connect the TR-830 pack to the OEM charger and leave it for at least 30 minutes without disconnecting; some chargers apply a low-current recovery pulse before resuming normal charge. If the charger LED remains in fault state after 45 minutes, the cells have dropped below recoverable threshold and the pack needs replacement. A healthy pack that has been stored should recover to a normal charge cycle within that window.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43360436060250,"sku":"BWCS-MTR800SL-1","price":510.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43360436093018,"sku":"BWCS-MTR800SL-2","price":610.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43360436125786,"sku":"BWCS-MTR800SL-3","price":685.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MTR800SL_1.webp?v=1778614760","url":"https:\/\/batteryweb.com\/products\/3m-tr-300-powered-air-respirator-replacement-battery-126v-4000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}