Annual report pursuant to Section 13 and 15(d)

Cover Page

Cover Page - USD ($)
5 Months Ended
Dec. 31, 2021
Mar. 31, 2022
Jun. 30, 2021
Document Information [Line Items]      
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2021    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Entity Registrant Name Battery Future Acquisition Corp.    
Entity Central Index Key 0001880441    
Current Fiscal Year End Date --12-31    
Entity Incorporation, State or Country Code E9    
Entity File Number 001-41158    
Entity Tax Identification Number 98-1618517    
Entity Address, Address Line One 51 NW 26th Street, Suite 533    
Entity Address, City or Town Miami    
Entity Address, State or Province FL    
Entity Address, Postal Zip Code 33127    
City Area Code 347    
Local Phone Number 417-4062    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company true    
Entity Ex Transition Period false    
Entity Shell Company true    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
ICFR Auditor Attestation Flag false    
Auditor Name WithumSmith+Brown, PC    
Auditor Firm ID 100    
Auditor Location New York    
Entity Public Float     $ 0
Ordinary Class A [Member]      
Document Information [Line Items]      
Title of 12(b) Security Class A ordinary shares, par value $0.0001 per share    
Trading Symbol BFAC    
Security Exchange Name NYSE    
Entity Common Stock, Shares Outstanding   34,500,000  
Ordinary Class B [Member]      
Document Information [Line Items]      
Entity Common Stock, Shares Outstanding   8,625,000  
Warrant [Member]      
Document Information [Line Items]      
Title of 12(b) Security Redeemable Warrants, each whole warrant exercisable for one Class A ordinary share, each at an exercise price of $11.50 per share    
Trading Symbol BFAC.WS    
Security Exchange Name NYSE    
Capital Units [Member]      
Document Information [Line Items]      
Title of 12(b) Security Units, each consisting of one Class A ordinary share and one-half of one redeemable warrant    
Trading Symbol BFAC.U    
Security Exchange Name NYSE