Portable battery for USRPs

GNU Radio
1

Hi!

I have to do a few outdoor experiments with USRPs. Hence I’m looking for
portable batteries that can be used for this purpose. After searching a
bit, the best option that seems to me is to use 12V heavy duty lantern
battery followed by a 12V to 110V DC to AC inverter, which can then be
used
for the USRP adapter. The combined assembly is still a bit heavy for me.
Is
there any other better (lighter) option ? Are there any batteries
specifically designed to be used with USRPs ?

Thanks in advance.

regards,
Aseem

2

As indicated on the silk screening of the front panel of the USRP(s)
they are powered by 6V DC @ 3A (Center pin is positive, outer negative).
It’s fairly easy to find battery solutions that meet this criteria
directly without using the AC adapter. I have built light weight Li-Ion
solutions for USRPs also, you need to take a little more care with
these, there nominal voltages tend to be significantly higher than 6V
and the details of what USRP/daughter board is being used can be
important. Stick with a lantern style battery or gel cell if you want to
keep it simple and safe.

3

On 07/29/2013 02:16 PM, Ian B. wrote:

As indicated on the silk screening of the front panel of the USRP(s) they are
powered by 6V DC @ 3A (Center pin is positive, outer negative). It’s fairly easy
to find battery solutions that meet this criteria directly without using the AC
adapter. I have built light weight Li-Ion solutions for USRPs also, you need to
take a little more care with these, there nominal voltages tend to be
significantly higher than 6V and the details of what USRP/daughter board is being
used can be important. Stick with a lantern style battery or gel cell if you want
to keep it simple and safe.

On Jul 29, 2013, at 10:46 AM, aseem wadhwa[email protected] wrote:

A very quick search turned up this:

Switchable output levels.

–
Marcus L.
Principal Investigator
Shirleys Bay Radio Astronomy Consortium

4

At work, we use a 12V motorbike lead battery with a cigarette lighter
plug and an
off-the-shelf dc/dc converter.
As of late, someone has designed a small case with a switch on top,
housing a
cheap downconverter (linear I guess). Works for hours and hours and
hours…