I'm using DC adapter 5.8 volt with 580 miliamp to produce 1.5 amp by using a pair of NPN transistor 2N3904 to be build as Darlington circuite.

Is it possible?
 
I'm using DC adapter 5.8 volt with 580 miliamp to produce 1.5 amp by using a pair of NPN transistor 2N3904 to be build as Darlington circuite.

Is it possible?

I think you would need to show us your full circuit design. The Darlington pair is literally just two transistors acting as a high gain pair.
 
i see, I just to booast the amperage but don't care to lower bujt simply used to charged two 1.3 Li-ion battery :)
You could in theory build or buy a buck converter to generate a lower voltage at higher current, but given 580mA at 5.8V (3.3W) available, the max voltage you could get with 1.5A draw would be around 2V,

I may be missing something, but a Li-Ion cell is normally 3.7V, not 1.3V. NiCd or NiMh batteries are 1.2V.
Where does the 1.3 come from? But you can have 1.3Ah Li-Ion cells!
 
You could in theory build or buy a buck converter to generate a lower voltage at higher current, but given 580mA at 5.8V (3.3W) available, the max voltage you could get with 1.5A draw would be around 2V,

I may be missing something, but a Li-Ion cell is normally 3.7V, not 1.3V. NiCd or NiMh batteries are 1.2V.
Where does the 1.3 come from? But you can have 1.3Ah Li-Ion cells!
I see, It is Nimh cell with two batteries.
 

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Increase current amperage by using darlington transistor
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