[Sony Ericsson Xperia Mini, Mini Pro, Xperia Pro, A] Ticklefish:
This is standard Gingerbread code. Try this:

<?xml version="1.0" encoding="utf-8"?>
<com.android.systemui.statusbar.StatusBarView android:orientation="vertical" android:background="@drawable/statusbar_background" android:focusable="true" android:descendantFocusability="afterDescendants"
xmlns:android="http://schemas.android.com/apk/res/android">
<LinearLayout android:orientation="horizontal" android:id="@id/icons" android:layout_width="fill_parent" android:layout_height="fill_parent">
<com.android.systemui.statusbar.IconMerger android:gravity="center_vertical" android:orientation="horizontal" android:id="@id/notificationIcons" android:paddingLeft="6.0dip" android:layout_width="0.0dip" android:layout_height="fill_parent" android:layout_weight="1.0" android:layout_alignParentLeft="true" />
<com.android.systemui.statusbar.policy.Traffic android:textAppearance="@style/TextAppearance.StatusBar.Traffic" android:gravity="left|center" android:id="@id/traffic" android:layout_width="wrap_content" android:layout_height="fill_parent" android:singleLine="true" />
<LinearLayout android:gravity="center_vertical" android:orientation="horizontal" android:id="@id/statusIcons" android:paddingRight="6.0dip" android:layout_width="wrap_content" android:layout_height="fill_parent" android:layout_alignParentRight="true" />
<com.android.systemui.statusbar.Clock android:textAppearance="@*android:style/TextAppearance.StatusBar.Icon" android:gravity="left|center" android:paddingRight="6.0dip" android:layout_width="wrap_content" android:layout_height="fill_parent" android:singleLine="true" />
</LinearLayout>
<LinearLayout android:orientation="horizontal" android:id="@id/ticker" android:paddingLeft="6.0dip" android:animationCache="false" android:layout_width="fill_parent" android:layout_height="fill_parent">
<ImageSwitcher android:id="@id/tickerIcon" android:layout_width="wrap_content" android:layout_height="fill_parent" android:layout_marginRight="8.0dip">
<com.android.systemui.statusbar.AnimatedImageView android:layout_width="25.0dip" android:layout_height="25.0dip" />
<com.android.systemui.statusbar.AnimatedImageView android:layout_width="25.0dip" android:layout_height="25.0dip" />
</ImageSwitcher>
<com.android.systemui.statusbar.TickerView android:id="@id/tickerText" android:paddingTop="2.0dip" android:paddingRight="10.0dip" android:layout_width="0.0dip" android:layout_height="wrap_content" android:layout_weight="1.0">
<TextView android:textAppearance="@*android:style/TextAppearance.StatusBar.Ticker" android:layout_width="fill_parent" android:layout_height="wrap_content" android:singleLine="true" />
<TextView android:textAppearance="@*android:style/TextAppearance.StatusBar.Ticker" android:layout_width="fill_parent" android:layout_height="wrap_content" android:singleLine="true" />
</com.android.systemui.statusbar.TickerView>
</LinearLayout>
<com.android.systemui.statusbar.DateView android:textAppearance="@*android:style/TextAppearance.StatusBar.Icon" android:gravity="left|center" android:id="@id/date" android:background="@drawable/statusbar_background" android:paddingLeft="6.0px" android:paddingRight="6.0px" android:layout_width="wrap_content" android:layout_height="fill_parent" android:singleLine="true" />
</com.android.systemui.statusbar.StatusBarView>

If you get an error with apktool, feel free to say what it is and I can help you fix it. :)

If you want to put the meter where it is in the op, you need to make your code look like this:

[hide[

<?xml version="1.0" encoding="utf-8"?>
<com.android.systemui.statusbar.phone.PhoneStatusBarView android:id="@id/status_bar" android:background="@drawable/status_bar_background" android:focusable="true" android:fitsSystemWindows="true" android:descendantFocusability="afterDescendants" android:layout_width="fill_parent" android:layout_height="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:systemui="http://schemas.android.com/apk/res/com.android.systemui">
<ImageView android:id="@id/notification_lights_out" android:paddingBottom="2.0dip" android:visibility="gone" android:layout_width="@dimen/status_bar_icon_size" android:layout_height="fill_parent" android:src="@drawable/ic_sysbar_lights_out_dot_small" android:scaleType="center" android:paddingStart="6.0dip" />
<LinearLayout android:orientation="horizontal" android:id="@id/status_bar_contents" android:layout_width="fill_parent" android:layout_height="fill_parent" android:paddingStart="6.0dip" android:paddingEnd="6.0dip">
<LinearLayout android:orientation="horizontal" android:id="@id/notification_icon_area" android:layout_width="0.0dip" android:layout_height="fill_parent" android:layout_weight="1.0">
<com.android.systemui.statusbar.StatusBarIconView android:id="@id/moreIcon" android:visibility="gone" android:layout_width="@dimen/status_bar_icon_size" android:layout_height="fill_parent" android:src="@drawable/stat_notify_more" />
<com.android.systemui.statusbar.phone.IconMerger android:gravity="center_vertical" android:orientation="horizontal" android:id="@id/notificationIcons" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_alignParentStart="true" />
</LinearLayout>
<LinearLayout android:orientation="horizontal" android:id="@id/system_icon_area" android:layout_width="wrap_content" android:layout_height="fill_parent">
<com.android.systemui.statusbar.policy.Traffic android:textAppearance="@style/TextAppearance.StatusBar.Traffic" android:gravity="left|center" android:id="@id/traffic" android:layout_width="wrap_content" android:layout_height="fill_parent" android:singleLine="true" />
<LinearLayout android:gravity="center_vertical" android:orientation="horizontal" android:id="@id/statusIcons" android:layout_width="wrap_content" android:layout_height="fill_parent" />
<LinearLayout android:gravity="center" android:orientation="horizontal" android:id="@id/signal_battery_cluster" android:layout_width="wrap_content" android:layout_height="fill_parent" android:paddingStart="2.0dip">
<include android:id="@id/signal_cluster" android:layout_width="wrap_content" android:layout_height="wrap_content" layout="@layout/signal_cluster_view" />
<include android:id="@id/signal_cluster_text" android:layout_width="wrap_content" android:layout_height="wrap_content" layout="@layout/signal_cluster_text_view" />
<TextView android:textAppearance="@style/TextAppearance.StatusBar.Battery" android:gravity="left|center" android:id="@id/dock_battery_text" android:layout_width="wrap_content" android:layout_height="fill_parent" android:singleLine="true" android:paddingStart="@dimen/status_bar_battery_cluster_padding" android:layout_marginEnd="@dimen/status_bar_battery_cluster_text_margin" />
<ImageView android:id="@id/dock_battery" android:layout_width="wrap_content" android:layout_height="wrap_content" android:paddingStart="@dimen/status_bar_battery_cluster_padding" />
<com.android.systemui.statusbar.policy.CircleDockBattery android:textAppearance="@style/TextAppearance.StatusBar.Battery" android:gravity="bottom" android:id="@id/circle_dock_battery" android:layout_width="wrap_content" android:layout_height="wrap_content" android:singleLine="true" android:paddingStart="@dimen/status_bar_battery_cluster_padding" />
<TextView android:textAppearance="@style/TextAppearance.StatusBar.Battery" android:gravity="left|center" android:id="@id/battery_text" android:layout_width="wrap_content" android:layout_height="fill_parent" android:singleLine="true" android:paddingStart="@dimen/status_bar_battery_cluster_padding" android:layout_marginEnd="@dimen/status_bar_battery_cluster_text_margin" />
<ImageView android:id="@id/battery" android:layout_width="wrap_content" android:layout_height="wrap_content" android:paddingStart="@dimen/status_bar_battery_cluster_padding" />
<com.android.systemui.statusbar.policy.CircleBattery android:textAppearance="@style/TextAppearance.StatusBar.Battery" android:gravity="bottom" android:id="@id/circle_battery" android:layout_width="wrap_content" android:layout_height="wrap_content" android:singleLine="true" android:paddingStart="@dimen/status_bar_battery_cluster_padding" />
</LinearLayout>
<com.android.systemui.statusbar.policy.Clock android:textAppearance="@style/TextAppearance.StatusBar.Clock" android:gravity="left|center" android:id="@id/clock" android:clickable="false" android:layout_width="wrap_content" android:layout_height="fill_parent" android:singleLine="true" android:paddingStart="6.0dip" />
</LinearLayout>
</LinearLayout>
<LinearLayout android:orientation="horizontal" android:id="@id/ticker" android:animationCache="false" android:layout_width="fill_parent" android:layout_height="fill_parent" android:paddingStart="6.0dip">
<ImageSwitcher android:id="@id/tickerIcon" android:layout_width="@dimen/status_bar_icon_size" android:layout_height="@dimen/status_bar_icon_size" android:layout_marginEnd="4.0dip">
<com.android.systemui.statusbar.AnimatedImageView android:layout_width="@dimen/status_bar_icon_size" android:layout_height="@dimen/status_bar_icon_size" android:scaleType="center" />
<com.android.systemui.statusbar.AnimatedImageView android:layout_width="@dimen/status_bar_icon_size" android:layout_height="@dimen/status_bar_icon_size" android:scaleType="center" />
</ImageSwitcher>
<com.android.systemui.statusbar.phone.TickerView android:id="@id/tickerText" android:paddingTop="2.0dip" android:layout_width="0.0dip" android:layout_height="wrap_content" android:layout_weight="1.0" android:paddingEnd="10.0dip">
<TextView android:textAppearance="@style/TextAppearance.StatusBar.PhoneTicker" android:layout_width="fill_parent" android:layout_height="wrap_content" android:singleLine="true" />
<TextView android:textAppearance="@style/TextAppearance.StatusBar.PhoneTicker" android:layout_width="fill_parent" android:layout_height="wrap_content" android:singleLine="true" />
</com.android.systemui.statusbar.phone.TickerView>
</LinearLayout>
</com.android.systemui.statusbar.phone.PhoneStatusBarView>

[/hide]

This is Cyanogenmod xml but the principle is still the same. Don't forget to edit your ids.xml and styles.xml as well!

No. I'm happy to do it if you've tried and you couldn't get it to work, but you will need to provide your framework-res.apk as well. Otherwise it's impossible to decompile SystemUI.apk.

If you want help in doing this mod yourself so you can understand how this all works, I'm more than happy to assist! :)