Can any external power bank power a portable external HDD

[-Stevo]

Hi, this may sound weird to most of you but I am trying to power a portable external HDD for my iPad to access files on the go. Obviously the iPad alone doesn't have enough power to run the HDD alone so I was wondering if any old external power bank would supply the extra juice it needs to work or would I have to get a specific one with certain voltage outputs. Also this will be used to power portable speakers (not at the same time) so I was wondering if they could also power those to.

External HDD

Portable USB powered speakers

 

[drtweak]

Yea it should. Not sure how long depends on how big the power bank is. The power bank (on the normal 1 Amp side if there is a 2.1 Amp side that is for TABLET!) gives off the same power as a USB slot. So if you have one of those adapters that has the two USB headers on the cable, one for Data/Power and one just for Power you could plug in the one for power on there. I just don't know if the feed back would do anything to the iPad though?

 

[techwithrick]

i dont know how much voltage the HDD will require but the ravpower has a whopping 26800 mAH which is a alot of juice that may come in need!! i made an unboxing video!! check it out and see if it helps and answeres your question

https://www.youtube.com/watch?v=EFWQA_nKNX0&index=4&list=PLD7BzYtQTblzPWQ1W7xavZ9aiIoimrrfK

 

[Zarachris]

For this I have a solution. Zendure charger is a product having 4 ports that can charge four devices at a time with high speed.It is highly durable and compact device.It can charge most USB chargeable devices including external batteries,phones,tablets,music players and more.Check it from :
http://www.zendure.com/products/zdaz4p