Cover - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Jun. 30, 2025	Sep. 15, 2025	Dec. 31, 2024
Cover [Abstract]
Document Type	10-K
Amendment Flag	false
Document Annual Report	true
Document Transition Report	false
Document Period End Date	Jun. 30, 2025
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2025
Current Fiscal Year End Date	--06-30
Entity File Number	001-41811
Entity Registrant Name	AMERICAN BATTERY TECHNOLOGY COMPANY
Entity Central Index Key	0001576873
Entity Tax Identification Number	33-1227980
Entity Incorporation, State or Country Code	NV
Entity Address, Address Line One	100 Washington Street
Entity Address, Address Line Two	Suite 100
Entity Address, City or Town	Reno
Entity Address, State or Province	NV
Entity Address, Postal Zip Code	89503
City Area Code	(775)
Local Phone Number	473-4744
Title of 12(b) Security	Common stock, $0.001 par value
Trading Symbol	ABAT
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 208
Entity Common Stock, Shares Outstanding		118,046,888
Documents Incorporated by Reference [Text Block]	Certain information in Part III of this Annual Report on Form 10-K is incorporated by reference to our definitive Proxy Statement for the 2025 Annual Meeting of Shareholders to be filed with the Securities and Exchange Commission within 120 days after the fiscal year ended June 30, 2025.
ICFR Auditor Attestation Flag	false
Document Financial Statement Error Correction [Flag]	true
Document Financial Statement Restatement Recovery Analysis [Flag]	false
Entity Listing, Par Value Per Share	$ 0.001
Auditor Name	KPMG LLP
Auditor Firm ID	185
Auditor Opinion [Text Block]	We have audited the accompanying consolidated balance sheets of American Battery Technology Company and subsidiaries (the Company) as of June 30, 2025 and 2024, the related consolidated statements of operations, stockholders’ equity, and cash flows for each of the years in the two year period ended June 30, 2025, and the related notes (collectively, the consolidated financial statements). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of June 30, 2025 and 2024, and the results of its operations and its cash flows for each of the years in the two year period ended June 30, 2025, in conformity with U.S. generally accepted accounting principles.
Auditor Location	Portland, Oregon