diff -Nrup gkrellm-2.3.2.mod.2/server/Makefile gkrellm-2.3.2.mod.3/server/Makefile
--- gkrellm-2.3.2.mod.2/server/Makefile	2008-10-09 19:02:59.728948000 +0800
+++ gkrellm-2.3.2.mod.3/server/Makefile	2008-10-09 19:59:59.877475000 +0800
@@ -56,10 +56,15 @@ GKRELLMD_INCLUDES = gkrellmd.h $(SHARED_
 PKG_INCLUDE = `$(PKG_CONFIG) --cflags glib-2.0 gthread-2.0`
 PKG_LIB = `$(PKG_CONFIG) --libs glib-2.0 gmodule-2.0 gthread-2.0`
 
+HAL_CFLAGS = -DDBUS_API_SUBJECT_TO_CHANGE -I/usr/include/hal -I/usr/include/dbus-1.0 -I/usr/lib/dbus-1.0/include -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include
+HAL_LIBS = -lhal -ldbus-glib-1 -ldbus-1 -lgobject-2.0 -lglib-2.0
+DBUS_CFLAGS = -I/usr/include/dbus-1.0 -I/usr/lib/dbus-1.0/include -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include
+DBUS_LIBS = -ldbus-glib-1 -ldbus-1 -lgobject-2.0 -lglib-2.0
+
 GLIB12_INCLUDE = `glib-config --cflags`
 GLIB12_LIB = `glib-config --libs glib gmodule`
 
-FLAGS = -O2 $(PKG_INCLUDE)
+FLAGS = -O2 $(PKG_INCLUDE) $(HAL_CFLAGS) $(DBUS_CFLAGS)
 
 ifeq ($(glib12),1)
     FLAGS = -O2 $(GLIB12_INCLUDE)
@@ -69,7 +74,7 @@ ifeq ($(glib12),yes)
 endif
 FLAGS += $(GTOP_INCLUDE) $(PTHREAD_INC) -I.. -I$(SHARED_PATH) -DGKRELLM_SERVER
 
-LIBS = $(PKG_LIB)
+LIBS = $(PKG_LIB) $(HAL_LIBS) $(DBUS_LIBS)
 ifeq ($(glib12),1)
     LIBS = $(GLIB12_LIB)
 endif
diff -Nrup gkrellm-2.3.2.mod.2/src/Makefile gkrellm-2.3.2.mod.3/src/Makefile
--- gkrellm-2.3.2.mod.2/src/Makefile	2008-10-09 19:02:59.824263000 +0800
+++ gkrellm-2.3.2.mod.3/src/Makefile	2008-10-09 20:02:19.048732000 +0800
@@ -87,10 +87,18 @@ GKRELLM_INCLUDES = gkrellm.h gkrellm-pub
 PKG_INCLUDE = `$(PKG_CONFIG) --cflags gtk+-2.0 gthread-2.0`
 PKG_LIB = `$(PKG_CONFIG) --libs gtk+-2.0 gthread-2.0`
 
-FLAGS = -O2 -I.. -I$(SHARED_PATH) $(PKG_INCLUDE) $(GTOP_INCLUDE) $(PTHREAD_INC) \
+HAL_CFLAGS = -DDBUS_API_SUBJECT_TO_CHANGE -I/usr/include/hal -I/usr/include/dbus-1.0 -I/usr/lib/dbus-1.0/include -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include
+HAL_LIBS = -lhal -ldbus-glib-1 -ldbus-1 -lgobject-2.0 -lglib-2.0
+DBUS_CFLAGS = -I/usr/include/dbus-1.0 -I/usr/lib/dbus-1.0/include -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include
+DBUS_LIBS = -ldbus-glib-1 -ldbus-1 -lgobject-2.0 -lglib-2.0
+
+FLAGS = -I.. -I$(SHARED_PATH) $(PKG_INCLUDE) $(GTOP_INCLUDE) $(PTHREAD_INC) $(HAL_CFLAGS) $(DBUS_CFLAGS)\
+
+
+FLAGS = -O2 -I.. -I$(SHARED_PATH) $(PKG_INCLUDE) $(GTOP_INCLUDE) $(PTHREAD_INC) $(HAL_CFLAGS) $(DBUS_CFLAGS) \
  ${NTLM_INCLUDES} -DGKRELLM_CLIENT
 
-LIBS = $(PKG_LIB) $(GTOP_LIBS) $(SMC_LIBS) $(SYS_LIBS) $(SSL_LIBS) $(SENSORS_LIBS) \
+LIBS = $(PKG_LIB) $(GTOP_LIBS) $(SMC_LIBS) $(SYS_LIBS) $(SSL_LIBS) $(SENSORS_LIBS) $(HAL_LIBS) $(DBUS_LIBS) -lnsl \
  $(NTLM_LIBS) $(X11_LIBS)
 
 ifeq ($(debug),1)
--- gkrellm-2.3.2.mod.2/src/sysdeps/solaris.c	2008-10-09 19:02:59.823558000 +0800
+++ gkrellm-2.3.2.mod.3/src/sysdeps/solaris.c	2008-10-22 20:33:19.630950000 +0800
@@ -998,18 +998,218 @@ gkrellm_sys_fs_init(void)
 
 /* ===================================================================== */
 /* Battery monitor interface */
+
+#include <libhal.h>
+#include <dbus/dbus-glib-lowlevel.h>
+#include <glib.h>
+
+static void
+device_removed_callback( LibHalContext *ctx, const char *udi )
+{
+   return;
+}
+
+static void
+device_added_callback( LibHalContext *ctx, const char *udi )
+{
+   return;
+}
+
 void
 gkrellm_sys_battery_read_data(void)
 	{
-	}
+    DBusConnection *connection;
+    LibHalContext *ctx;
+    DBusError error;
+    char **devices;
+    gint i, num;
+    char * key;
+    const char *udi; /* device name seen by HAL */
+    /* We need to know if we are on AC power or not.  Eventually, we can look
+     * at the AC adaptor HAL devices to determine that.  For now, we assume that
+     * if any battery is discharging then we must not be on AC power.  Else, by
+     * default, we must be on AC.
+     */
+    gboolean on_line = TRUE;
+
+    gboolean available; /* the device's battery is/isn't attached */
+    gboolean charging; /* If the battery is charged by AC */
+    gboolean discharging; /* If the battery is used */
+    gint remaining_time; /* remaining time in second gotten from HAL */
+    gint current_charge_total = 0, full_capacity_total = 0;
+    gint current_level, full_level;
+    gint time_left; /* how many time left for battery */
+    gint percent; /* used percent */
+
+    dbus_error_init( &error );
+
+    if( (connection = dbus_bus_get( DBUS_BUS_SYSTEM, &error )) == NULL )
+    {
+      dbus_error_free( &error );
+      return;
+     }
+
+    if( (ctx = libhal_ctx_new()) == NULL )
+    {
+      dbus_set_error( &error, _("HAL error"), _("Could not create libhal_ctx") );
+      dbus_error_free( &error );
+      return;
+    }
 
-gboolean
-gkrellm_sys_battery_init()
-	{
-	return FALSE;
-	}
+    libhal_ctx_set_dbus_connection( ctx, connection );
+    libhal_ctx_set_device_added( ctx, device_added_callback );
+    libhal_ctx_set_device_removed( ctx, device_removed_callback );
+
+    if( libhal_ctx_init( ctx, &error ) == 0 )
+    {
+      libhal_ctx_free( ctx );
+      dbus_error_free( &error );
+      return;
+    }
+
+    devices = libhal_find_device_by_capability( ctx, "battery", &num, &error );
 
+    if( devices == NULL )
+    {
+      libhal_ctx_shutdown( ctx, NULL );
+      libhal_ctx_free( ctx );
+      dbus_error_free( &error );
+      return;
+    }
 
+    /* FIXME: for now, if 0 battery devices are present on first scan, then fail.
+     * This allows fallover to the legacy (ACPI, APM, etc) backends if the
+     * installed version of HAL doesn't know about batteries.  This check should
+     * be removed at some point in the future (maybe circa GNOME 2.13..).
+     */
+    if( num == 0 )
+    {
+
+      dbus_free_string_array( devices );
+      dbus_set_error( &error, _("HAL error"), _("No batteries found") );
+      libhal_ctx_shutdown( ctx, NULL );
+      libhal_ctx_free( ctx );
+      dbus_error_free( &error );
+
+      return;
+     }
+
+    for( i = 0; i < num; i++ )
+    {
+      char *type = libhal_device_get_property_string( ctx, devices[i],
+                                                    "battery.type",
+                                                    &error );
+      if( type )
+      {
+        /* We only track 'primary' batteries (ie: to avoid monitoring
+         * batteries in cordless mice or UPSes etc.)
+         */
+        if( !strcmp( type, "primary" ) ){
+
+           udi = devices[i];
+
+           key = g_strdup("battery.charge_level.current"); // current charge
+           current_level = libhal_device_get_property_int( ctx, udi, key, &error );
+           g_free(key);
+
+           key = g_strdup("battery.charge_level.last_full"); // maximum charge
+           full_level = libhal_device_get_property_int( ctx, udi, key, &error );
+           g_free(key);
+
+           key =  g_strdup("battery.present"); /* the device's battery is/isn't attached */
+           available = libhal_device_get_property_bool( ctx, udi, key, &error );
+           g_free(key);
+
+           if (!available)
+           {
+            /* Either no battery is present or something has gone horribly wrong.
+             * In either case we must return that the composite battery is not
+             * present.
+             */
+               available = FALSE;
+               percent = 0;
+               time_left = -1;
+               on_line = TRUE;
+               charging = FALSE;
+               gkrellm_battery_assign_data(i, available, on_line, charging, percent, time_left);
+
+               dbus_free_string_array( devices );
+               libhal_ctx_shutdown( ctx, NULL );
+               libhal_ctx_free( ctx );
+               dbus_error_free( &error );
+               return ;
+           }
+
+           key = "battery.rechargeable.is_discharging"; /* the battery is being used */
+           discharging = libhal_device_get_property_bool( ctx, udi, key, &error );
+           g_free(key);
+
+           key = g_strdup("battery.rechargeable.is_charging");
+           charging = libhal_device_get_property_bool( ctx, udi, key, &error );
+           g_free(key);
+
+           key = g_strdup("battery.charge_level.rate");// shows the percent charged
+           percent = libhal_device_get_property_int( ctx, udi, key, &error );
+           g_free(key);
+
+           key = g_strdup("battery.remaining_time"); // the remaining charge time or remaining battery time
+           remaining_time = libhal_device_get_property_int( ctx, udi, key, &error );
+           g_free(key);
+
+           /* In the case of exactly one battery, report the time remaining figure
+            * from HAL directly since it might have come from an authorative source
+            * (ie: the PMU or APM subsystem).
+            *
+            * HAL gives remaining time in seconds with a 0 to mean that the
+            * remaining time is unknown.  we uses minutes and -1 for 
+            * unknown time remaining.
+            */
+
+           if( remaining_time == 0 )
+              time_left = -1;
+           else
+              time_left = (remaining_time + 30) / 60;
+
+
+           /* At least one battery is discharging -> we're not on AC. */
+           if( discharging )
+           {
+             on_line = FALSE; /* AC is on-line? */
+             charging = FALSE;
+           }
+
+           current_charge_total += current_level;
+           full_capacity_total += full_level;
+
+           /* As per above, overall charge is:
+            *
+            *    Sum( Current charges ) / Sum( Full Capacities )
+            */
+           percent = ( ((double) current_charge_total) /
+                      ((double) full_capacity_total)    ) * 100.0 + 0.5;
+
+
+           gkrellm_battery_assign_data(i, available, on_line, charging, percent, time_left);
+
+           libhal_free_string( type );
+           }
+     } // end of if (type) 
+    } // end of for 
+
+    dbus_free_string_array( devices );
+
+    libhal_ctx_shutdown( ctx, NULL );
+    libhal_ctx_free( ctx );
+    dbus_error_free( &error );
+    return ;
+ 	}
+ 
+gboolean
+gkrellm_sys_battery_init()
+ 	{
+	  return TRUE;
+ 	}
+ 
 /* ===================================================================== */
 /* Uptime monitor interface */