Author Battery drainage with USB chargers  (Read 1256 times)

0 Members and 1 Guest are viewing this topic.

  • Offline CT_Ron

    • Crosstourer Pro  ‐    183
    • ***
    • Topic Author

    Offline CT_Ron

    • Crosstourer Pro
    • ***
    • Topic Author
    • Posts: 183
    • Bike: VFR1200X (2014)
    • City / Town: Borne
    Battery drainage with USB chargers
    on: Jul 12, 2020, 08.14 pm
    Jul 12, 2020, 08.14 pm
    I have installed 3 USB chargers, all using an independent buck converter (12v to 5v). Do the converters draw current even when not used?

    My battery is too low on power for the bike to start when not used for 5-6 days. The USB chargers have an on/off switch, but the converters sit before that. They are hooked directly to the battery. :006:


  • Offline __Ray__   nl

    • Crosstourer Pro  ‐    435
    • ***
      #1

    Offline __Ray__

    • Crosstourer Pro
    • ***
    • Posts: 435
    • Bike: Honda VFR1200X
    • City / Town: Brunssum
    • Country: nl
    Re: Battery drainage with USB chargers
    Reply #1 on: Jul 12, 2020, 09.45 pm
    Jul 12, 2020, 09.45 pm
    Yes

  • Offline CT_Ron

    • Crosstourer Pro  ‐    183
    • ***
    • Topic Author
    • #2

    Offline CT_Ron

    • Crosstourer Pro
    • ***
    • Topic Author
    • Posts: 183
    • Bike: VFR1200X (2014)
    • City / Town: Borne
    Re: Battery drainage with USB chargers
    Reply #2 on: Jul 12, 2020, 10.09 pm
    Jul 12, 2020, 10.09 pm
    *Originally Posted by __Ray__ [+]
    Yes

    Short and direct, love it.

    But, are 3 converters enough to drain an entire 11,2Ah battery in a week?
    Last Edit: Jul 12, 2020, 10.11 pm by CT_Ron

  • Offline Showkey

    • Crosstourer Pro  ‐    143
    • ***
      #3

    Offline Showkey

    • Crosstourer Pro
    • ***
    • Posts: 143
    Re: Battery drainage with USB chargers
    Reply #3 on: Jul 12, 2020, 11.19 pm
    Jul 12, 2020, 11.19 pm
    Yes


    Even one can drain the battery over a period of days at least to level of no crank.
    Last Edit: Jul 12, 2020, 11.20 pm by Showkey

  • Offline CT_Ron

    • Crosstourer Pro  ‐    183
    • ***
    • Topic Author
    • #4

    Offline CT_Ron

    • Crosstourer Pro
    • ***
    • Topic Author
    • Posts: 183
    • Bike: VFR1200X (2014)
    • City / Town: Borne
    Re: Battery drainage with USB chargers
    Reply #4 on: Jul 13, 2020, 03.49 am
    Jul 13, 2020, 03.49 am
    Alright then, I was unaware of this. I'll solder an on/off switch between the battery and converters then. That should fix it. Thanks  :152:

  • Offline Matlock   gb

    • Crosstourer Pro  ‐    124
    • ***
      #5

    Offline Matlock

    • Crosstourer Pro
    • ***
    • Posts: 124
    • Bike: VFR1200X
    • City / Town: Liverpool
    • Country: gb
    Re: Battery drainage with USB chargers
    Reply #5 on: Jul 13, 2020, 10.04 am
    Jul 13, 2020, 10.04 am
    The best solution is to run them from a relay triggered from a switched live, unless you specifically need to use them when the ignition is switched off. Are they fused? They should be.

  • Offline CT_Ron

    • Crosstourer Pro  ‐    183
    • ***
    • Topic Author
    • #6

    Offline CT_Ron

    • Crosstourer Pro
    • ***
    • Topic Author
    • Posts: 183
    • Bike: VFR1200X (2014)
    • City / Town: Borne
    Re: Battery drainage with USB chargers
    Reply #6 on: Jul 13, 2020, 10.19 am
    Jul 13, 2020, 10.19 am
    I'm going to put a waterproof switch somewhere outside for easy on/off acces. I do need them to run power with the bike turned off, but judging by how fast it drains,  thinking of didging that idea and only charge my electronics while riding. Going to Norway in 3 weeks

  • Offline Showkey

    • Crosstourer Pro  ‐    143
    • ***
      #7

    Offline Showkey

    • Crosstourer Pro
    • ***
    • Posts: 143
    Re: Battery drainage with USB chargers
    Reply #7 on: Jul 13, 2020, 01.35 pm
    Jul 13, 2020, 01.35 pm
    Problem with the switch..........it can be forgotten to be switch off at the worst possible time.

    Where this also comes up is GPS direct powered from the battery........where the unit is “forgotten” and not shut off.

     



    arab-exile