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RPi Battery Pack

Posted: Mon Feb 17, 2014 2:14 pm
by szahran
Hello Everyone,

I have a project where I need my RPi to be in a mobile environment, for this I need a battery pack that can supply my RPi with enough power for many hours, in addition I have a USB hub connected to the RPi which also requires electricity.

I wonder if you can recommend a battery pack that can support both RPi and the USB-hub.

I also need a mini/small/portable HDMI monitor that can work with the RPi.

Thanks in advance,
szahran

Re: RPi Battery Pack

Posted: Mon Feb 17, 2014 2:22 pm
by MrBunsy
Do you want to buy a complete solution, or are you happy to do some soldering yourself?

Re: RPi Battery Pack

Posted: Mon Feb 17, 2014 2:28 pm
by szahran
It depends on how complicated the soldering is, I don't have electrical engineering background.

I found this thing http://www.adafruit.com/products/1566#Distributors but I'm not sure if it is what I'm looking for.

Please post your suggestions.

Re: RPi Battery Pack

Posted: Mon Feb 17, 2014 3:43 pm
by MrBunsy
That certainly looks like it'd do what you want. What I've done for my pi-on-a-robot is buy a cheap 12v lead acid battery and a regulated DC-DC converter to bring that down to 5V, but I can't currently find the exact converter I used.

Re: RPi Battery Pack

Posted: Mon Feb 17, 2014 3:44 pm
by MrBunsy

Re: RPi Battery Pack

Posted: Mon Feb 17, 2014 4:10 pm
by szahran
Thanks! It seems to be an interesting solution, would you please elaborate on how you've assembled your solution and what things you've exactly used.

Re: RPi Battery Pack

Posted: Mon Feb 17, 2014 4:48 pm
by MrBunsy
I stuck (I think, I'll have to go and track down my notes or circuit board to confirm) the capacitors on the input and out put that the datasheet recommended.

Re: RPi Battery Pack

Posted: Tue Feb 25, 2014 7:07 pm
by MrBunsy
I had an idea the other day - a lead acid battery and an in-car cigarette lighter USB socket might be sufficient. Depends how well regulated it is.