Comment 7 for bug 993440

Apparently, dconf-editor can be used to tweak lower-level power settings directly (see org->gnome->settings-daemon->plugins->power), but:

1) I haven't confirmed yet that it does, in fact, resolve this particular issue (suspend on low battery), although some of the other settings have taken effect
2) the "official" power settings dialogue is *extremely* spartan
3) having to use dconf-editor to configure the system is like having to use regedit to do the same on Windows: it makes no sense