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.
Relationship between kundalini and kriya. Kundalini yoga is not a practice but a system, just as hatha yoga is not a practice but a system. Kriya yoga is one part of kundalini yoga; it is a practice and not a system. The word kundalini has to be explained properly. According to the modern writers, kundalini is a coiled serpent, but according to tantra, the word kunda means 'a deeper place'.