diff --git a/examples/UPS/UPS.ino b/examples/UPS/UPS.ino
index e908b1b..f951f85 100644
--- a/examples/UPS/UPS.ino
+++ b/examples/UPS/UPS.ino
@@ -31,7 +31,6 @@ uint16_t iAvgTimeToEmpty = 7200;
 uint16_t iRemainTimeLimit = 600;
 int16_t  iDelayBe4Reboot = -1;
 int16_t  iDelayBe4ShutDown = -1;
-uint16_t iManufacturerDate = 0; // initialized in setup function
 byte iAudibleAlarmCtrl = 2; // 1 - Disabled, 2 - Enabled, 3 - Muted
 
 
@@ -92,9 +91,7 @@ void setup() {
   PowerDevice.setFeature(HID_PD_CPCTYGRANULARITY1, &bCapacityGranularity1, sizeof(bCapacityGranularity1));
   PowerDevice.setFeature(HID_PD_CPCTYGRANULARITY2, &bCapacityGranularity2, sizeof(bCapacityGranularity2));
 
-  uint16_t year = 2024, month = 10, day = 12;
-  iManufacturerDate = (year - 1980)*512 + month*32 + day; // from 4.2.6 Battery Settings in "Universal Serial Bus Usage Tables for HID Power Devices"
-  PowerDevice.setFeature(HID_PD_MANUFACTUREDATE, &iManufacturerDate, sizeof(iManufacturerDate));
+  PowerDevice.sendManufacturerDate(2024, 10, 12);
 }
 
 void loop() {
diff --git a/src/HIDPowerDevice.cpp b/src/HIDPowerDevice.cpp
index 5217e04..884d278 100755
--- a/src/HIDPowerDevice.cpp
+++ b/src/HIDPowerDevice.cpp
@@ -249,9 +249,9 @@ void HIDPowerDevice_::setSerial(const char* s) {
 void HIDPowerDevice_::end(void) {
 }
 
-int HIDPowerDevice_::sendDate(uint16_t id, uint16_t year, uint8_t month, uint8_t day) {
-    uint16_t bval = (year - 1980)*512 + month * 32 + day;
-    return HID().SendReport(id, &bval, sizeof (bval));
+int HIDPowerDevice_::sendManufacturerDate(uint16_t year, uint8_t month, uint8_t day) {
+    iManufacturerDate = (year - 1980)*512 + month * 32 + day; // from 4.2.6 Battery Settings in "Universal Serial Bus Usage Tables for HID Power Devices"
+    return HID().SetFeature(HID_PD_MANUFACTUREDATE, &iManufacturerDate, sizeof(iManufacturerDate));
 }
 
 int HIDPowerDevice_::sendReport(uint16_t id, const void* bval, int len) {
diff --git a/src/HIDPowerDevice.h b/src/HIDPowerDevice.h
index 888b860..4a2710a 100755
--- a/src/HIDPowerDevice.h
+++ b/src/HIDPowerDevice.h
@@ -121,13 +121,15 @@ class HIDPowerDevice_  {
   
   void end(void);
   
-  int sendDate(uint16_t id, uint16_t year, uint8_t month, uint8_t day);
+  int sendManufacturerDate(uint16_t year, uint8_t month, uint8_t day);
   int sendReport(uint16_t id, const void* bval, int len);
   
   int setFeature(uint16_t id, const void* data, int len);
   
   int setStringFeature(uint8_t id, const uint8_t* index, const char* data);
 
+private:
+  uint16_t iManufacturerDate = 0;
 };
 
 extern HIDPowerDevice_ PowerDevice;