Mike Buzzetti has worked for Nasa JPL , Hughes Research Labs and several very high tech companies, he currently owns Nanometer Technologies a fiber optics company, Autospacover and Notcigs all based in Paso Robles Ca, 

All Notcigs products are designed to the highest standards in the Industry , We have brought fully protected designs to the industry as well as Variable Voltage , we currently have a Patent Pending on Variable voltage. 

These products contain rechargeable lithium batteries. They can be a fire hazard when mistreated. Use of a LiPo charging bag (available here) is highly recommended. 

The following guidelines should be strictly followed:

1. Only recharge these devices with the intended charging cable or adapter. Using chargers with incorrect voltage or current can cause a fire or catastrophic failure.

2. Never leave a charging battery unattended. 

3. Never charge a battery overnight while you sleep.

4. Never leave a battery on your charger longer than necessary. When it is full, unplug your charger and remove the battery. Leaving a battery on charge when it is full will degrade it’s performance and may result in a fire.