Speaking of chargers, what is the story on them?  I see my Joytech charger puts out 420mA, I have another that puts out 200mA, and still others that show 500mA.
I have read not to use the Joytech for other batteries and vice-versa, but not sure why.
	
		
			
		
		
	
			
			I have read not to use the Joytech for other batteries and vice-versa, but not sure why.