v3.26.1
Cover
6 Months Ended
Jun. 30, 2026
Cover [Abstract]  
Document Type 6-K
Amendment Flag false
Document Period End Date Jun. 30, 2026
Document Fiscal Period Focus Q2
Document Fiscal Year Focus 2026
Current Fiscal Year End Date --12-31
Entity File Number 000-53543
Entity Registrant Name Ballard Power Systems Inc.
Entity Central Index Key 0001453015
Entity Address, Address Line One 9000 Glenlyon Parkway
Entity Address, City or Town Burnaby
Entity Address, State or Province BC
Entity Address, Country CA
Entity Address, Postal Zip Code V5J 5J8