diff --git a/website_sale_stock_available/models/product_product.py b/website_sale_stock_available/models/product_product.py
index 1519b4cc2f..e16c2b8d31 100644
--- a/website_sale_stock_available/models/product_product.py
+++ b/website_sale_stock_available/models/product_product.py
@@ -13,10 +13,18 @@ def _compute_quantities_dict(
         res = super()._compute_quantities_dict(
             lot_id, owner_id, package_id, from_date, to_date
         )
-        if self.env.context.get("website_sale_stock_available"):
-            for product in self.with_context(website_sale_stock_available=False):
-                immediately = product.immediately_usable_qty
-                res[product.id]["free_qty"] = immediately
+        if not self.env.context.get("website_sale_stock_available"):
+            return res
+        products = self.with_context(
+            website_sale_stock_available=False,
+            lot_id=lot_id,
+            owner_id=owner_id,
+            package_id=package_id,
+            from_date=from_date,
+            to_date=to_date,
+        )
+        for data in products.read(["immediately_usable_qty"]):
+            res[data["id"]]["free_qty"] = data["immediately_usable_qty"]
         return res
 
     @api.depends_context("website_sale_stock_available")
diff --git a/website_sale_stock_available/tests/test_website_sale_stock_available.py b/website_sale_stock_available/tests/test_website_sale_stock_available.py
index d594839bea..939e1874cd 100644
--- a/website_sale_stock_available/tests/test_website_sale_stock_available.py
+++ b/website_sale_stock_available/tests/test_website_sale_stock_available.py
@@ -1,6 +1,8 @@
 # Copyright 2020 Tecnativa - Ernesto Tejeda
 # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
 
+from unittest.mock import patch
+
 from odoo.tests.common import TransactionCase
 
 
@@ -89,3 +91,49 @@ def test_get_combination_info(self):
         self.assertEqual(
             combination_info["free_qty"], self.product.immediately_usable_qty
         )
+
+    def test_compute_quantities_dict_multi_product_batch(self):
+        product_b = self.env["product.product"].create(
+            {"name": "Storable product B", "type": "product"}
+        )
+        product_c = self.env["product.product"].create(
+            {"name": "Storable product C", "type": "product"}
+        )
+        self.env["stock.quant"].create(
+            {
+                "product_id": product_b.id,
+                "location_id": self.stock_location.id,
+                "quantity": 20.0,
+            }
+        )
+        self.env["stock.quant"].create(
+            {
+                "product_id": product_c.id,
+                "location_id": self.stock_location.id,
+                "quantity": 30.0,
+            }
+        )
+        products = self.product | product_b | product_c
+        product_product = type(self.env["product.product"])
+        with patch.object(
+            product_product,
+            "_compute_available_quantities",
+            autospec=True,
+            side_effect=product_product._compute_available_quantities,
+        ) as spy:
+            result = products.with_context(
+                website_sale_stock_available=True,
+            )._compute_quantities_dict(None, None, None)
+        self.assertEqual(spy.call_count, 1)
+        self.assertEqual(len(result), 3)
+        self.assertEqual(
+            result[self.product.id]["free_qty"], self.product.immediately_usable_qty
+        )
+        self.assertEqual(
+            result[product_b.id]["free_qty"], product_b.immediately_usable_qty
+        )
+        self.assertEqual(
+            result[product_c.id]["free_qty"], product_c.immediately_usable_qty
+        )
+        free_qtys = {result[p.id]["free_qty"] for p in products}
+        self.assertEqual(len(free_qtys), 3)