Battery Power for the XU4 Solved! I am Powering my XU4 with a Small Li-Ion Battery Pack
Instructions and Links to Required Parts Listed Below:
It is possible to power
with a battery system. It took me a few weeks and a lot of trial and error, but I am now powering a XU4
running Ubuntu 15.04 with a battery. All of the components were purchased on Amazon and the entire system should only cost +/- $50. Some basic electronics skills are required to connect the components. If there is anyone who is determined to complete this project in spite of being a complete noob when it comes to electronics. Contact me and I will take the time to write up a step by step, foolproof guide to building a replica of my system.
requires 5 volts (power
supplied from a USB) however it also requires up to 4 amps. USB ports only provide 2 amps and the most you can hope for from a USB battery charger is 3 amps from a single port. Therefore, none of the USB battery power
supplies are an option. There are now battery power
packs that provide an AC outlet, however they are bulky, expensive and it would be inefficient to use the XU4
's wall transformer.
Since no USB battery power
pack will provide sufficient amps, you will need to use a voltage transformer and a battery power
pack that can supply it's required input voltage.
I purchased all of the components I used on Amazon (links included).
First you will need to find a voltage transformer. I picked the DROK 12v/24v to 5v/5a 25w Converter
. This item is cheap, well reviewed, water proof and has a 90% conversion efficiency rate. It also accepts 12v to 24v as input, allowing a wide range of sources to be used as power
sources. It may turn out you already have a device you can utilize and save some money.
If you don't already have a suitable battery power
pack, my I recommend the unit i finally settled on TalentCell Rechargeable Li-Ion Battery Pack
. This unit utilizes a Li-Ion battery pack, making it lightweight and small enough for easy transport. It should provide power
to the XU4
for multiple hours when fully charged. It also has a USB power
output that can be used at the same time as the 12v output. If you plan to run a lot of peripheral devices with your XU4
, this outlet can be used to power
some of the devices, relieving the strain on the main power
Once you have these two units, it is a relatively simple matter of connecting the 12v output of the TalentCell (a 5.5mm barrel plug) to the DROK's input and then attaching a second 5.5mm barrel plug to the DROK's output so it can be plugged into the XU4
That is all it takes to provide battery power
to your XU4
If you have absolutely no experience working with electronics, I urge you to seek out someone who does. A simple mistake such as reversing the polarity of a plug (switching pos. and neg.) could cause irreparable damage to the converter and or your XU4
! I would recommend that you own and are comfortable with a soldering iron and a test meter before undertaking this project.
I am more than happy to help in any way I can. If enough people express interest, I would be willing to construct and sell at cost + S/H a pre-fabed kit (including DROK coverter) that would connect the TalentCell directly to an XU4
. Please let me know if you are interested. firstname.lastname@example.org