There is for me, nbp. I let it sit and don't charge it. For most users, you are correct. I will tell you that you are lucky you got the Gen2. The Gen2 in general has many little upgrades and fixes over the Gen1. They never announced this or anything or designated it. They just quietly put the new one into production. Trust me, it is better all the way around. That is not a spring clickie now. It is now magnetic. They both said 2500 lumens but the old one could barely make 1800lm. The new one is making a little over 2500. It throws further than the old one as well. These are not big differences though. The big upgrades were waterproof rating increase, charging amp increase, reliability increase. I have the T28vn. I wanted the T27 stock so I could use the rear clickie. Plus the vinh T27 is not a huge increase in throw but gets much worse battery life. You really need to get a Samsung 40T or Molicell P42A battery. The Acebeam battery is absolute junk. I guess I could just leave mine plugged in when I am not using it. Since CR123's are expensive. At least good ones are. I wanted to say that I did not intend to make anyone with the previous T27 feel bad. Things move on. You still have a great and unique flashlight. There is nothing this small that can throw like this. I actually have replaced my Surefire Dominator with this. My UDR Dominator is over 3 years old. It is wearing out at this point. The T27 is smaller, lighter and outperforms the Surefire. I actually like the UI better than the bunch of buttons too. Time moved on that as well. Why they still sell it for $1,370 I have no clue. I had paid about $1,800 for mine upon introduction. It is just like buying computers.