v3.25.2
Cover
Aug. 07, 2025
Document Information [Line Items]  
Document Type 8-K
Document Period End Date Aug. 07, 2025
Entity Registrant Name AMPRIUS TECHNOLOGIES, INC.
Entity Incorporation State Country Code DE
Entity File Number 001-41314
Entity Tax Identification Number 98-1591811
Entity Address, Address Line One 1180 Page Avenue
Entity Address, City or Town Fremont
Entity Address, State or Province CA
Entity Address, Postal Zip Code 94538
City Area Code 800
Local Phone Number 425-8803
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Entity Emerging Growth Company true
Entity Ex Transition Period false
Entity Central Index Key 0001899287
Amendment Flag false
Common stock  
Document Information [Line Items]  
Security 12b Title Common stock, par value $0.0001 per share
Trading Symbol AMPX
Security Exchange Name NYSE
Redeemable warrants  
Document Information [Line Items]  
Security 12b Title Redeemable warrants, each exercisable for one share of common stock at an exercise price of $11.50
Trading Symbol AMPX.W
Security Exchange Name NYSE