On Fri, 18 Jul 2014 15:36:09 EDT erik quanstrom <quans...@quanstro.net> wrote: > On Fri Jul 18 12:51:49 EDT 2014, 23h...@gmail.com wrote: > > > perhaps high-efficiency wall warts could make up much of the difference. > > > picked at random (first link) ... > > > > > > http://www.amazon.com/Nokia-AC-10U-Micro-USB-Efficiency-Charger/dp/B00DP0 > TQLG > > > > > > > Given that the rpi has some weird power issues and without > > specification of the amperage of the charger this might be bad advice. > > good point. thanks for pointing that out.
The new B+ has a switching regulator. It uses less power and it is more tolerant of voltage changes -- below 5V USB will stop working but there are reports of booting Linux to login screen on as low as 2.6V. So power issues should be resolved.