At 25a and assuming the solar panels supply 12v you ll need a 25 x 12 300w of solar panel capacity.
													
																	One solar panel 2 charge. 
									
	
		
	
																	Dual battery bank having two independent batteries or sets of batteries performing different functions. 
																	Solar array the solar array is the panel or set of panels. 
																	If you don t know how to charge a drained battery using solar hardware this guide can help. 
																	I understand that it will work fine if the output of each controller is going to a different battery or battery bank. 
															
													
									
	
		
	
																	Iesafy solar charger 26800mah outdoor solar power bank with 4 foldable solar panels and 2 high speed charging ports for smartphones tablets samsung iphone etc with waterproof led flashlight 4 5 out of 5 stars 229. 
																	Allow at least 10 extra capacity. 
																	One solar panel can charge a 12 volt battery. 
																	An example of this would be a start battery and an rv s house battery bank. 
															
													
									
	
		
	
																	08 07 18 camera still shows 100 battery level. 
																	Here s something you can do. 
																	Battery life at the end of today is now at 58. 
																	Solar charge controller keeps the solar panel from over charging your battery or batteries. 
															
													
									
	
		
	
																	I will now unplug the solar panel to compare battery life loss. 
																	I returned the unit to amazon. 
																	The solar panel does have a built in blocking diode. 
																	Do i need to connect a charge controller between the battery batteries and solar panel or will the built in charge controller in the rv suffice. 
															
													
									
	
		
	
																	I m trying to learn all i can about solar power hope you can help me. 
																	So you need 300 x 1 1 330w of solar panels. 
																	Connect two large solar panels to one battery. 
																	However many other accessories are also needed to distribute power to a battery s cells. 
															
													
									
	
		
	
																	Theoretically you can have both charge controllers on the same pv array solar panel. 
																	The combined power of the two panels would exceed the current handling capability. 
																	To charge a battery with a solar panel connect a charge connector to the solar panel.