My STM32L053 draining the battery after USB disconnect when in deep sleep mode???

[HSmir]

void HAL_PCD_SuspendCallback(PCD_HandleTypeDef *hpcd)
{
  /* Inform USB library that core enters in suspend Mode */
  USBD_LL_Suspend((USBD_HandleTypeDef*)hpcd->pData);
  /*Enter in STOP mode */
  /* USER CODE BEGIN 2 */
  if (hpcd->Init.low_power_enable)
  {
    /* Set SLEEPDEEP bit and SleepOnExit of Cortex System Control Register */
    SCB->SCR |= (uint32_t)((uint32_t)(SCB_SCR_SLEEPDEEP_Msk | SCB_SCR_SLEEPONEXIT_Msk));
  }
  /* USER CODE END 2 */
}
 
void HAL_PCD_ResumeCallback(PCD_HandleTypeDef *hpcd)
{
  /* USER CODE BEGIN 3 */
  if (hpcd->Init.low_power_enable)
  {
    /* Reset SLEEPDEEP bit of Cortex System Control Register */
    SCB->SCR &= (uint32_t)~((uint32_t)(SCB_SCR_SLEEPDEEP_Msk | SCB_SCR_SLEEPONEXIT_Msk));   
    SystemClockConfig_Resume(); 
  }
  /* USER CODE END 3 */
  USBD_LL_Resume((USBD_HandleTypeDef*)hpcd->pData);
  
}