Become a Site Supporter and Never see Ads again!

Author Topic: Powering two devices from one USB battery  (Read 3450 times)

0 Members and 1 Guest are viewing this topic.

Offline voltronic

  • Trade Count: (40)
  • Needs to get out more...
  • *****
  • Posts: 4095
Powering two devices from one USB battery
« on: April 26, 2015, 12:11:57 PM »
I'm curious to know if I could power a recorder and preamp both off the same USB battery.   

I own this RAVPower which has both a 1A and a 2A output: http://www.newegg.com/Product/Product.aspx?Item=0SC-000Y-00068

So far I've only used it to power my DR-70D from the 1A output.  I'm wondering if I could simultaneously power the FP24 off the 2A output, realizing the FP24 won't draw anywhere near 2A even with phantom on.

The 70D requires 5V at 1A full load.  The FP24 will accept 5-14V input, but no current specs given.

This is more of a hypothetical question and not something I really have need of, since I get great battery life in the FP24 with rechargeable AA's.  Just curious if this is possible or not.
I am hitting my head against the walls, but the walls are giving way.
- Gustav Mahler

Acoustic Recording Techniques
Team Classical
Team Line Audio
Team DPA

Offline Gene Poole

  • Trade Count: (1)
  • Taperssection Regular
  • **
  • Posts: 104
Re: Powering two devices from one USB battery
« Reply #1 on: April 26, 2015, 10:20:25 PM »
I power my SD MP2 off a similar battery and it does just fine with 5V from a USB jack.  I haven't actually measured the current draw, but it is not very much.  The 4-cell USB supply that I have will run the MP2 for at least 12 hours with 48V phantom.  I had to make my own cable for it:


Offline voltronic

  • Trade Count: (40)
  • Needs to get out more...
  • *****
  • Posts: 4095
Re: Powering two devices from one USB battery
« Reply #2 on: April 27, 2015, 06:07:16 AM »
^ Thanks.  LEDs at minimum and no headphones is always how I use it.
I am hitting my head against the walls, but the walls are giving way.
- Gustav Mahler

Acoustic Recording Techniques
Team Classical
Team Line Audio
Team DPA

Offline carlbeck

  • Trade Count: (14)
  • Needs to get out more...
  • *****
  • Posts: 2811
  • Gender: Male
Re: Powering two devices from one USB battery
« Reply #3 on: July 26, 2015, 09:58:25 AM »
Any success with your plan to power both units from the single battery? I'm thinking of doing the same thing with my DR2D & FP24.
I know you like, tape for people's approval and stuff, and wave your tapes around like they're your dick...  but even you can't actually think section tapes from philips sound good.  



Mics: Telefunken Elam 260, 61, 62, MBHO KA200, KA500 > Niant PFA's, AKG C34L-MS
Preamps: Grace Lunatec V2, Shure FP24
Decks: Tascam DR-2d, Zoom F8

Old rig: Recording: AKG C34 & AKG CK1X or CK2X > MK46 > 460 > Aeta Mix2000 > Sound Devices 702

Playback: Thorens TD125, Denon DVD-2900> Bel Canto DAC-1 > Audible Illusions 3B > Rogue Atlas >ZU Wax Shotgun> Hyperion 938
ALL TUBES BABY!!!

Offline voltronic

  • Trade Count: (40)
  • Needs to get out more...
  • *****
  • Posts: 4095
Re: Powering two devices from one USB battery
« Reply #4 on: July 26, 2015, 11:57:05 AM »
Any success with your plan to power both units from the single battery? I'm thinking of doing the same thing with my DR2D & FP24.

Actually I never got around to trying it out, as I've only run the FP24 and 70D together once, and at the time I was running the FP24 off of the rechargeable AAs.  I think the RavPower battery came with some adapter cables though - I'll have to look if one will fit the FP24.
I am hitting my head against the walls, but the walls are giving way.
- Gustav Mahler

Acoustic Recording Techniques
Team Classical
Team Line Audio
Team DPA

 

RSS | Mobile
Page created in 0.058 seconds with 31 queries.
© 2002-2024 Taperssection.com
Powered by SMF