This is a guest post written by Morandir835, an e-cig enthusiast, admin on the Vapor4Life forum, and a regular on their ECF sub forum. This summer a lot of the US has seen record high temps, so now is a great time to touch upon some very important reminders about the heat. Heat not only affects the batteries we vapers use, but also the juice. Temperatures Affect on Vaping Supplies Never leave a battery, juice,  or a tank in a hot car. High heat damages lithium based batts. The inside of a car can easily get to 150 degrees or above in 90 plus degree temps. Juice at that temp will change its flavor aspects, and not in a good way. This is why leaving a bottle of juice or a filled tank in it for any extended period is strongly advised against.  High humidity and heat will change the vapor output from your ecig in comparison to a mild or cold day. More humidity usually equals less vapor if all things are equal. Don't store your juice in the fridge, just like high heat will affect the flavors of a juice, so will long-term cold storage. You'll want to keep your juice between 55-85 degrees Fahrenheit. Weathering a Storm Because of potential power outages during the summer due to thunderstorms you want to make sure you have plenty of back up batteries charged. My usual rule is to have enough batteries on hand to last through 2 days. So if you go through 5 a day, have 10 ready to go. I don't normally suggest using the USB charger on batteries other than the Classic Vapor King (ash cap) batteries because of their potential to overcharge, but I do suggest having one on you for emergencies. In the recent storms that took out power here on the East coast   I almost had to use mine in my car to charge a battery simply because I had no other power source. If you are using a USB charger on a Vapor King Diamond, as soon as you see the "cop car effect" (steady flashing of red to blue lights on the charger itself) unscrew the battery. Leaving the battery on the charger after its fully charged will overcharge the battery, which can lower it's life. I hope this info helps everyone during the hot summer months. One non-vaping related note - please remember to not leave your animals in your car for any reason during the summer. Dogs and cats can't sweat, and cracking the window is not enough to keep them cool. It's best to leave your pets at home if you can't bring them indoors with you. Contact Morandir835 via e-mail at [email protected] or through his page on ECF at http://www.e-cigarette-forum.com/forum/members/51087/morandir835.html "Even Though I Nothing Learned, With Strength I Burned."  €“ Emperor