[Bug 494772] Re: When running on battery power, update manager creates spooky, confusing messages

[Vish]

** Changed in: hundredpapercuts
    Milestone: None => maverick-round-8-potpourri

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When running on battery power, update manager creates spooky, confusing messages
https://bugs.launchpad.net/bugs/494772
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Status in One Hundred Paper Cuts: In Progress
Status in Ubuntu Netbook Remix: Invalid
Status in Update Manager: In Progress
Status in The Update Notifier: Invalid

Bug description:
This bug is a consequence of https://bugs.edge.launchpad.net/bugs/377697

Example (wish I took a screenshot, oops):

Running UNR 9.10
I open my computer on battery power and begin surfing the internet in Firefox
After a few minutes of browsing the internet, a message box appears. It says simply

'You are running on battery power. Do you still want to continue?'

There is no indication that this message has anything to do with update manager. I think this is part of firefox - I click yes.

<https://wiki.ubuntu.com/SoftwareUpdateHandling#alert>: "The secondary text for the alert should consist of one or more list items, depending on the exact situation ... Whenever the computer is running on battery, there should be an item (fixing bug 484249 and bug 494772) with exactly the same battery icon as the power status menu is currently using for the battery, and the text: “It’s safer to connect the computer to AC power before installing.” (fixing bug 426708)."