I recently purchased a PI2AES and am looking to get the best sound quality I can for use with Hugo2. There's a variety of PSU's I could buy but would prefer to go with a lifepo battery setup and avoid the wall plug all together for superior sound quality. I also can run my PI2AES with the goldensound psu 5v bypass mod, not sure if that matters with regard to picking the best way to run it. Does anyone make a rechargeable lifepo battery power device I could use with the Pi2AES? TY