PAPR PARTS INTELLIGENCE

SEC 02 // PART RECORD

837631 3M Adflo Heavy-Duty Li-ion Battery

Verified against primary source · 2026-07-04 battery · current · UK, EU, US

Fits these systems

Systems this part fits, with compatibility status and evidence
SystemCompatibility statusEvidence
3M Speedglas Adflo PAPR T2 Manufacturer-listed part
  1. [01] multimedia.3m.com manufacturer manual Listed as "83 76 31 — Battery Li-ion Heavy-Duty" in the spare parts table of 3M's official EMEA Adflo Technical Datasheet (October 2024); also appears in gas filter kit 83 73 01 (A1B1E1 filter + Heavy-Duty battery). Archived in repo: sources/3m-adflo-emea-technical-datasheet-oct2024.pdf. 2026-07-04
  2. [02] www.thefacemaskstore.com distributor Distributor FAQ adds that the HD battery "is fully compatible with all Adflo PAPR systems and can be used as a direct replacement or spare" — the all-generations claim remains distributor-evidenced. 2026-07-04

Specifications

Technical specifications
ChemistryLi-ion, 10.8 V / 48 Wh
Runtime~10–13 h (≈12 h at 170 L/min)
Charge time80% in ~1 h, full in ~5.5 h (with charger 833111)
Weight~40% lighter than the pack it upgrades

Notes

The upgrade option in the Adflo battery family. EMEA numbering: the standard Li-ion battery is 837630 and this HD battery is 837631; the US-market standard battery is 35-1099-07. Charger 833111 (83 31 11) serves the EMEA Li-ion packs. The "fits all Adflo systems" claim is distributor-evidenced; the datasheet confirms it as a current manufacturer-listed Adflo part.

Price guide

Premium over standard battery (837630 EMEA / 35-1099-07 US)

Record sources

Evidence — dated sources
  1. [01] multimedia.3m.com manufacturer manual 2026-07-04