diff --git a/beep/validation_schemas/schema-arbin-18650-2170.yaml b/beep/validation_schemas/schema-arbin-18650-2170.yaml
index 6aba5aa4..3ed61de1 100644
--- a/beep/validation_schemas/schema-arbin-18650-2170.yaml
+++ b/beep/validation_schemas/schema-arbin-18650-2170.yaml
@@ -28,7 +28,7 @@ test_time:
   type: list
 voltage:
   schema:
-    max: 4.5
+    max: 5.0
     min: 2.0
     type: float
   type: list
diff --git a/beep/validation_schemas/schema-arbin-nmc-phev.yaml b/beep/validation_schemas/schema-arbin-nmc-phev.yaml
index 45d80a20..9cd1cd10 100644
--- a/beep/validation_schemas/schema-arbin-nmc-phev.yaml
+++ b/beep/validation_schemas/schema-arbin-nmc-phev.yaml
@@ -28,7 +28,7 @@ test_time:
   type: list
 voltage:
   schema:
-    max: 4.3
+    max: 5.0
     min: 0.0
     type: float
   type: list
diff --git a/beep/validation_schemas/schema-maccor-2170.yaml b/beep/validation_schemas/schema-maccor-2170.yaml
index 719f4875..016534da 100644
--- a/beep/validation_schemas/schema-maccor-2170.yaml
+++ b/beep/validation_schemas/schema-maccor-2170.yaml
@@ -16,8 +16,8 @@ state:
   type: list
 volts:
   schema:
-    max: 4.45
-    min: 1.2
+    max: 5.0
+    min: 0
     type: float
   type: list
 amps: