The CCELL Silo battery is a flag-ship for the evolution in CCELL innovation of portable extract oil vaporizers. Don’t let this small and sleek design fool you, the battery capacity on this 500mAh battery does not compromise one bit. After a full charge, the Silo battery is still able to consistently deliver full volume of vapor from start to finish for over a week under normal use. Just like other CCELL technology, the CCELL Silo battery is button-free, inhale activated, magnetic connection that is compatible with the popular .510 thread cartridges, breathing indicator, and has micro USB charging built in. This CCELL battery is one of the many industry-leading innovations that are becoming extremely popular in the vaporizer industry.