diff --git a/power-supply/power_supply.cpp b/power-supply/power_supply.cpp
index 50d647a..3d7673c 100644
--- a/power-supply/power_supply.cpp
+++ b/power-supply/power_supply.cpp
@@ -19,6 +19,7 @@
 #include <xyz/openbmc_project/Common/Device/error.hpp>
 #include <xyz/openbmc_project/Software/Version/server.hpp>
 #include "elog-errors.hpp"
+#include "gpio.hpp"
 #include "names_values.hpp"
 #include "power_supply.hpp"
 #include "pmbus.hpp"
@@ -79,6 +80,9 @@
                        pmbusIntf.findHwmonDir();
                        this->present = true;
 
+                       // Sync the INPUT_HISTORY data for all PSs
+                       syncHistory();
+
                        // Update the inventory for the new device
                        updateInventory();
                    }),
@@ -752,6 +756,36 @@
     }
 }
 
+void PowerSupply::syncHistory()
+{
+    using namespace witherspoon::gpio;
+
+    if (syncGPIODevPath.empty())
+    {
+        //Sync not implemented
+        return;
+    }
+
+    GPIO gpio{syncGPIODevPath,
+              static_cast<gpioNum_t>(syncGPIONumber),
+              Direction::output};
+
+    try
+    {
+        gpio.set(Value::low);
+
+        std::this_thread::sleep_for(std::chrono::milliseconds{5});
+
+        gpio.set(Value::high);
+
+        recordManager->clear();
+    }
+    catch (std::exception& e)
+    {
+        //Do nothing.  There would already be a journal entry.
+    }
+}
+
 void PowerSupply::enableHistory(const std::string& objectPath,
                                 size_t numRecords,
                                 const std::string& syncGPIOPath,
diff --git a/power-supply/power_supply.hpp b/power-supply/power_supply.hpp
index 5eb96a9..e88e257 100644
--- a/power-supply/power_supply.hpp
+++ b/power-supply/power_supply.hpp
@@ -389,6 +389,20 @@
         void updateInventory();
 
         /**
+         * @brief Toggles the GPIO to sync power supply input history readings
+         *
+         * This GPIO is connected to all supplies.  This will clear the
+         * previous readings out of the supplies and restart them both at the
+         * same time zero and at record ID 0.  The supplies will return 0
+         * bytes of data for the input history command right after this until
+         * a new entry shows up.
+         *
+         * This will cause the code to delete all previous history data and
+         * start fresh.
+         */
+        void syncHistory();
+
+        /**
          * @brief Reads the most recent input history record from the power
          *        supply and updates the average and maximum properties in
          *        D-Bus if there is a new reading available.