Vostro and Inspiron Platforms Experience Power-On Time Delay Under Battery Power

Summary: This article provides information about the power on delay when using the system with a battery in comparison to AC adapter mode on select Dell Inspiron and Vostro laptops.

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.
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Symptoms

Select Dell Inspiron, and Vostro laptops exhibits a delayed power or power up time when used under battery power compare with AC adapter power.

Cause

This is caused due to the S5 mode power consumption saving design, where the charger IC is turned off when the system is set to S5. The charger IC includes a power-saving function under S5, and it takes time to resume from an S5 to an S0 state after pressing the power button.

Resolution

This is an expected behavior on these Dell Inspiron and Vostro laptops. A delay upon pressing the power button to turn on the system in battery only (DC) mode is normal.

The time difference between AC adapter (AC) compares with battery (DC) mode is this transition time.

Power on transition time difference
Affected Platforms AC Adapter Mode Battery Mode
  • Inspiron 3480, 3481, 3580, 3581, 3583, 3584, and 3780
  • Vostro 3480, 3481, 3580, 3581, 3583, and 3584
 343.8 ms 817.5 ms
  • Inspiron 3490, 3493, 3590, 3593, 3790, 3793, 5493, 5494, 5593, and 5594
  • Vostro 3490, 3491, 3590, and 3591
 343.2 ms 956.6 ms
  • Inspiron 3595
 205.7 ms 1.224 s

Affected Products

Inspiron 3480, Inspiron 3481, Inspiron 3490, Inspiron 3493, Inspiron 5493, Inspiron 5494, Inspiron 3580, Inspiron 3581, Inspiron 3583, Inspiron 3584, Inspiron 3590, Inspiron 3593, Inspiron 3595, Inspiron 5593, Inspiron 5594, Inspiron 3780 , Inspiron 3790, Inspiron 3793, Vostro 3480, Vostro 3481, Vostro 3490, Vostro 3491, Vostro 3580, Vostro 3581, Vostro 3583, Vostro 3584, Vostro 3590, Vostro 3591 ...
Article Properties
Article Number: 000130498
Article Type: Solution
Last Modified: 30 Apr 2025
Version:  7
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