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The backup battery (BUB) is rechargeable. Even though the manual suggests that you charge the device for four hours before using it, you should actually charge it much longer (overnight preferably) in order for the BUB to get charged fully. You may even have to charge it like this a few times. The switcher bar should shut the apps down if you select Close All. You could try Icbar as well. Failing that, you can close them down by going to Start>Settings>System>Memory>Running Programs and then select Close All.
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