Skip to content
View in the app

A better way to browse. Learn more.
Ford Owners Club - Ford Forums

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.



Join the Independent Ford Owners' Club

Our community has been built by enthusiasts, for enthusiasts, and proudly run by Ford owners' for over 18 years. As an independent, non-official club, everything you’ll find here, advice, support, and opinions, comes directly from members with genuine Ford ownership experience.

Join our friendly community... it's Free!

 

Leaving SD card reader attached to USB port - effect on battery when turned off

CraigJ123
CraigJ123
in Ford Fiesta Club

Featured Replies

Probs a stupid question but I'm using a micro sd card reader with sd card connected to usb lead and usb port. Is it ok to leave in the port when car is turned off? (as in it wouldn't drain the battery). My memory stick appears knackered and quicker than using bluetooth with phone so doing it this way.

Any info gratefully appreciated.

 

  • Quote


    A card reader doesn't draw any power so you will be fine leaving it plugged in.

    Sent from my SM-G965F using Tapatalk

  • Quote
    • Like 1
    • Author

    Thanks. Is there anything that would draw power if plugged in but the car was fully turned off?

  • Quote
    Thanks. Is there anything that would draw power if plugged in but the car was fully turned off?
    It depends how long the 12v socket remains live for.
    Things like dashcams, external satnav, MP3 players etc

    Sent from my SM-G965F using Tapatalk

  • Quote
    • 2 weeks later...

    Hi All

    My car is an Edge, not a Fiesta, but I have 2 dash cams connected this way with no power drain issues. Has been connected this way for about 2.5 years now. Power stays on for about 1 hour after all turned off keeping dash cams visibly active (nice unexpected deterrent) before going into knock etc activation mode when power goes off.
    Don't know if same would apply to Fiesta

    Happy motoring

    Dave

    Sent from my SM-J600FN using Tapatalk

  • Quote
    • Author

    If the power is staying on for an hour but the car is not running, would that not use up battery power? 

     

    I very occasionaly have the power on after turning off the car if I'm waiting in the car but would turn the power button on manually otherwise would turn off automatically after a couple of mins (for lighting to help get out of the car).

    It's a bit confusing as you think you've left the power on. I Prefered my 07 Focus which turned everything off straight away.

  • Quote

    No worries about power drain. Like I said has been connected up this way for over 2.5 years with no battery drain issues.
    I also think that the power supply I tapped into also powers the cigarette lighter sockets and the radio as well.

    Happy motoring

    Dave

    Sent from my SM-J600FN using Tapatalk

  • Quote

    • Latest Deals

    Ford UK Shop for genuine Ford parts & accessories

    Disclaimer: As the club is an eBay Partner, The club may be compensated if you make a purchase via the club

    Join the conversation

    You can post now and register later. If you have an account, sign in now to post with your account.

    Guest
    Reply to this topic...
    Go to topic listing

    The "Digestive"

    • The Digestive Forum Roundup (24th May - 31st May 2026)

      Steve ·
      The Digestive Forum Roundup (24th May - 31st May 2026) We hope this email finds you well and enjoying your week. As always, our forum has been buzzing with activity, so we’ve compiled the highlights for you. Plenty of interesting discussions are taking place, especially around the Ford Focus and Fiesta models. Starting off with the Focus, many members have been discussing issues with the Emergency Call System, particularly in the Mk4 model. PLB raised concerns about persistent malfunctions, a se
      Steve
      Steve
      • 248 views





    Background Picker
    Customize Layout

    Account

    Navigation

    Search

    Search

    Configure browser push notifications
    Chrome (Android)
    1. Tap the lock icon next to the address bar.
    2. Tap Permissions → Notifications.
    3. Adjust your preference.
    Chrome (Desktop)
    1. Click the padlock icon in the address bar.
    2. Select Site settings.
    3. Find Notifications and adjust your preference.