The Limitless Pulse Pod System has an output of 8 watts and is powered by a 380mAh built in battery. Now if you have ever used one of these pod style systems you know that 8 watts is plenty of power to provide a nice tasty vape a long with a good throat hit (depending on the juice that is used.) The charging system of this device is like any other in the fact that it uses a standard micro USB connection, simply plug the device in and let it charge. The Limitless Pulse Pod System utilizes a 2mL top-fill refillable pod. The pod has a small rubber insert on the top, simply remove this insert, squeeze your juice down the fill ports, pop that rubber insert back in and you are good to go. This device has one of the more simple pods to refill, which is a great factor as it makes this device more convenient than most competitors. The Limitless Pulse will accept any salt based nicotine e liquid as well as any high pg juice, you can use a 50/50 vg/pg but I have found that it is optimal with a higher pg content.