30-11-18, 02:13 PM 
		
	
	
		Most modern battery chargers wont recognise a battery if it drops below a certain voltage. I think mine fails if the voltage drops to below 9 volts. I can revive them somewhat, with a voltage regulator/convertor Ive had for years, input is 240v ac and I can have varying outputs 0-12v dc, then put the charger on
	
	
	
	
	

