That should work OK, but given the age of the 505, might it not be better simply to replace it with a more modern device? Buying a new battery and an external charger is going to cost you a significant fraction of the cost of a new reader, and modern "Carta" eInk screens are enormously better than the screen of the 505 - much, much more contrast, and hence easier to read. Plus you have all the benefits that frontlighting brings in terms of being able to read in poor light.
Last edited by HarryT; 02-21-2016 at 08:31 AM.
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