diff --git a/lib/pages/battery_health_page.dart b/lib/pages/battery_health_page.dart
index aba3007..72aa9ed 100644
--- a/lib/pages/battery_health_page.dart
+++ b/lib/pages/battery_health_page.dart
@@ -1037,12 +1037,13 @@ class _BatteryHealthPageState extends State<BatteryHealthPage>
                               double value = percents[index];
                               Color barColor;
                               if (value > 0) {
-                                if (value >= 80)
+                                if (value >= 80) {
                                   barColor = kHealthGreen;
-                                else if (value >= 60)
+                                } else if (value >= 70) {
                                   barColor = kHealthYellow;
-                                else
-                                  barColor = kHealthOrange;
+                                } else {
+                                  barColor = Colors.red; // 🟢 小于 70 显示红色
+                                }
                               } else {
                                 barColor = Colors.grey.shade300;
                               }