Hello, I recently purchased a 510. I knew this going in, the Joye 510 has horrible battery life. Still a great PV 
. Any way, I know that lithium batteries lose the amount of charge they hold the more you charge them. Does anyone know the approximate time a 510 battery will last before I need to purchase a new one? 
Ex
	
		
			
		
		
	
			
			Ex