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ordos18's avatar
ordos18
Tutor
May 13, 2018

AirCard 785S without battery

Hello! I have a problem with turning on AC 785S without battery, only on AC power supply. I found similar topic where someone confirmed that it is working, but not in my device.   https://commu...
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Mobile Routers
ArodiD's avatar
ArodiD
NETGEAR Expert
May 14, 2018

Hi ordos18,

 

I recommend using a power adapter which is 5V 2A minimum.  The supplied power adapter will not keep the device running without battery.

 

Kind Regards,

 

ArodiD

ordos18's avatar
ordos18
Tutor
May 14, 2018

ArodiD, thank you for your tip. I did try with 2,4A power supply, but with the same result. Maybe there is some current limiting because of USB autocoding, I will check it on another charger.

 

However, if 1A charger is sufficient for charging battery and running the network, it should work as well without charging the battery. Do you think that router needs more power during booting?

 

Thank you,

Maciek

  • ordos18's avatar
    ordos18
    Tutor
    May 15, 2018

    Still no success on other chargers. While running and charging a battery it takes 1A even when charger can supply more, so I don't think that it needs more current.

     

    ArodiD, do you have any idea?

     

    Thanks,

    Maciej

    • JasonN's avatar
      JasonN
      NETGEAR Employee Retired
      May 16, 2018

      Hi ordos18,

      Thank you for responding to the post. I see that you have tried other chargers but did you try using a 5V 2A minimum charger as Arodi has suggested?

      Please let me know. :]

       

       

      - Jason N

      • ordos18's avatar
        ordos18
        Tutor
        May 20, 2018

        JasonN, yes I did. It was 2.4A 5V USB charger as I mentioned before. Maybe it doesn't work because of USB autocoding. What USB voltages at data pins does it need to run?

         

        However I found a simple and easy solution (workaround?). I just put a small piece of adhesive tape inside the USB plug to insulate two pins in the middle: D+ and D-. After that it works and takes about 200 mA with a good signal strength and 2 clients connected.