I have had my Radar since January and I only charge it at night while sleeping unless I have a day of real heavy use but then it needs a quick charge at some point in the afternoon or evening. My androiod was about every 4-6 hours I would need to charge it and if its a day of light use I could go an easy 24+ hours with the Radar. I've also found it seems to recharge quite fast a short 45 min charge will boost the battery a lot, when I'm not able to give it a full charge due to availability of an outlet. Good luck I hope you like the device if its the one you end up with. I have not had any issues with mine I love it I'm very happy especially coming from my Samgsung Galaxy S its fast reliable and very crisp looking.
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