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					Originally Posted by  astra_lestat
					 
				 
				But Cybook Gen3 has 5 days or 1 week of life time from one charge. Sony has 3.5 weeks. You can afford to loose 1 week per year and still use it for 3 years    
			
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  One advantage of a replaceable battery nis that you can carry around a spare instead of a bulkier charger.  (One extra battery with an electronic book can be 'insurance' for a very long vacation away from electrical outlets.  Except for an iliad, which would require a truckload of batteries! 

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