Sanyo Pedal Juice Keeps Your Guitar Pedals Alive
It's a 9V Lithium–Ion rechargeable battery power pack that can provide up to 50 hours of power to a guitar effects pedal, and unless you're playing all night, the Pedal Juice also eliminates the need for power cables which can produce “ground sound” and drastically reduce tone.

Just in case you missed that: 50 hours! That's a lifetime in guitar years! There are two 9V DC outputs to power multiple pedals, and a 3-stage LED light to show power level. There's a single on/off button (no need to unplug your pedals) and it can be recharged "hundreds" of times. Even more, it's water and shock resistant and fully recharges in just 3.5 hours. It's also the same footprint as standard effects pedal (2.5” W x 4.7”D x 1.7”H), so it fits easily into a pedal case. Total cost? $149.99, but that's a bargain if you gig nightly.
