diff --git a/system/database/DB_active_rec.php b/system/database/DB_active_rec.php
index a5df7f3..e78b2a8 100644
--- a/system/database/DB_active_rec.php
+++ b/system/database/DB_active_rec.php
@@ -1252,11 +1252,12 @@
 			$key = array($key => $value);
 		}
 
-		$keys = array_keys(current($key));
+		$keys = array_keys($this->_object_to_array(current($key)));
 		sort($keys);
 
 		foreach ($key as $row)
 		{
+			$row = $this->_object_to_array($row);
 			if (count(array_diff($keys, array_keys($row))) > 0 OR count(array_diff(array_keys($row), $keys)) > 0)
 			{
 				// batch function above returns an error on an empty array
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index 5f6d591..0cac8ae 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -54,6 +54,7 @@
 
 -  Database
 
+   -  Added the ability to insert objects with insert_batch() in :doc:`Active Record <database/active_record>`.
    -  Added new :doc:`Active Record <database/active_record>` methods that return
       the SQL string of queries without executing them: get_compiled_select(),
       get_compiled_insert(), get_compiled_update(), get_compiled_delete().