I have a kangertech subox mini with a sony vtc4 battery (it is authentic for sure) it is 3.7V. I currently do not own a battery charger at the moment but just recently I ordered a Nitecore i2 Intellicharge, but it will not be here til Oct. 8 - Oct. 26. Is it okay for me to use my android phone charger to charge my vape until it comes in?