Intrinsically safe 5-V, 4-A rechargeable power supply

Author:	Sammarco, John J.
Year:	1989
Document Type:	USBI
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.27:9223
Series:	Information circular / Bureau of Mines ;
Report Number:	9223
Subjects:	Storage batteries
	Electricity in mining--Safety measures
Link:	https://hdl.handle.net/2027/mdp.39015078457572