The 18650 battery typically has a power of 3.7 volts and a current of 2600mAh. An overwhelming number of 18650 types are rechargeable. This feature should become the uniform standard moving forward.
Kriya Yoga is a simple, psychophysiological method by which human blood is decarbonated and recharged with oxygen. The atoms of this extra oxygen are transmuted into life current to rejuvenate the brain and spinal centers.
SÄdhana is a discipline undertaken in the pursuit of a goal. AbhyÄsa is repeated practice performed with observation and reflection. KriyÄ, or action, also implies perfect execution with study and investigation. Therefore, sÄdhanÄ, abhyÄsa, and kriyÄ all mean one and the same thing.