Hello. I recently purchased a KangerTech EMOW kit. So far, I like it, but I have some questions. On a full charge, the battery lasts about 13 hours (on the low voltage setting). Does anyone make a compatible battery that lasts longer? Filling the tank is a little messy. Where's the best (cheapest) place to purchase a needle tipped squeeze bottle? The metal mouthpiece is okay, but I'd like to change it for something softer (silicone? nylon?). Any suggestions? By the way, I used to smoke about a pack a day. I'm down to about three cigarettes a day, and hope to be tobacco free by mid January. Thanks for any info. or suggestions you can provide.