src/Controller/BatteryManufacturerController.php

@@ -300,9 +300,14 @@ class BatteryManufacturerController extends BaseController
                     'warr_private' => $battery->getWarrantyPrivate(),
                     'warr_commercial' => $battery->getWarrantyCommercial(),
                 ];
-            }    
+            }
         }
 
+        // order by price
+        usort($batteries, function ($a, $b) {
+            return -($a['sell_price'] <=> $b['sell_price']);
+        });
+
         // response
         return $this->json([
             'data' => $batteries