Document and Entity Information - $ / shares		6 Months Ended
	Feb. 11, 2021	Dec. 31, 2020
Details
Registrant CIK		0001576873
Fiscal Year End		--06-30
Document Type		10-Q
Document Quarterly Report		true
Document Period End Date		Dec. 31, 2020
Document Transition Report		false
Entity File Number		000-55088
Entity Registrant Name		AMERICAN BATTERY METALS CORP
Entity Incorporation, State or Country Code		NV
Entity Tax Identification Number		33-1227980
Entity Address, Address Line One		930 Tahoe Blvd. Suite 802-16
Entity Address, City or Town		Incline Village
Entity Address, State or Province		NV
Entity Address, Postal Zip Code		89451
Entity Address, Address Description		Address of principal executive offices
City Area Code		775
Local Phone Number		473-4744
Phone Fax Number Description		Registrant's telephone number
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 Listing, Par Value Per Share	$ 0.001
Entity Common Stock, Shares Outstanding	527,456,202
Amendment Flag		false
Document Fiscal Year Focus		2021
Document Fiscal Period Focus		Q2