Meta has temporarily stopped selling the Elite Strap with Battery due to a charging fault and explains to MIXED why it has to produce new accessories.
Meta Quest 3's official accessory 'Elite Strap' has enhanced head support to improve comfort and stability during MR/VR experiences - GIGAZINE
Meta Quest 3 review: the VR headset you've been waiting for
Quest 3 headset and Elite battery strap charging issues and fire Hazard : r/OculusQuest
Oculus's Warranty and Broken Elite/Battery Straps : r/OculusQuest
Meta Quest 3 Elite Strap with Battery sales are paused due to a charging fault
Play in comfort and get up to 2 hours additional VR game playtime with this ergonomic, adjustable head strap that features a built-in battery pack.
Quest 3 Elite Strap with Battery
Quest 3 - Quest 2 Head Strap Adapter. Free Files included : r/OculusQuest
Meta Resumes Quest 3 Battery Strap Orders Following Charging Debacle
Quest 3 charge/ battery concerns : r/OculusQuest
Review of Q3 + elite strap w/ battery + docking station from QPro owner : r/QuestPro
Elite Strap Not Available on Oculus.com : r/OculusQuest
Meta Quest 3 Review: The best XR Headset by far
The Quest 3 skipped the Cyber Monday party, but these cheap accessory deals didn't
Quest 3 Elite Strap Battery Failure and V59 Update
Use QUEST 2 Battery Strap (Broken or Not) with your QUEST 3