diff --git a/src/main/java/com/interplug/qcast/biz/estimate/EstimateService.java b/src/main/java/com/interplug/qcast/biz/estimate/EstimateService.java
index ea123bdf..4779b336 100644
--- a/src/main/java/com/interplug/qcast/biz/estimate/EstimateService.java
+++ b/src/main/java/com/interplug/qcast/biz/estimate/EstimateService.java
@@ -620,6 +620,9 @@ public class EstimateService {
           } else if ("PC_".equals(itemRequest.getItemGroup())) {
             pcTypeNo += !StringUtils.isEmpty(pcTypeNo) ? splitStr : "";
             pcTypeNo += itemRequest.getItemNo();
+          } else if ("STORAGE_BATTERY".equals(itemRequest.getItemGroup())) {
+            pcTypeNo += !StringUtils.isEmpty(pcTypeNo) ? splitStr : "";
+            pcTypeNo += itemRequest.getItemNo();
           }
         }
       }