{edit} Robert, I'll bet you are using the 18xxx 3.7 volt. I would expect they would shut off at a higher voltage than the 16xxx 3 volt I'm using. This is mostly for information for others to make note.
The set I used right before the the one I reported, lastly, AW LiFePO4, 3v 500mAH, stopped, and came out of the BP at 2.34v and 2.40v. They are probably a better matched set. I'm going to make not of the sets that don't come out as close in voltage. If there are more than one set, exact same battery type, of course, maybe I will have some that I can switch around to get better matched sets. Of course these AW LiFePO 4 battery sets I'm using are a year old, already, although not heavy used but I did have them stored, for many months, without topping them up during that time..
As long as I'm using them at home, I don't mind that they don't have optimal vape time. I'm not going to plan any trips away from house, with "other than REO" VV (without carrying a REO too, as I always do) until we get the VV Woodvils and are able to use the new AW IMR 18340s. But when we carry one REO we aways carry an extra battery or two and an extra atty/carto, for just in case. Several times I've left the house thinking I had put a fresh battery in and I hadn't. So now we always make it a habit to put a newly charged one one in, as we are leaving, and pull the extra and installed one from the back of row. The back ones are the most recently charged. At least half of our AW IMR 14500 and all of the AW IMR 18650, (we use only AW IMR 14500, 18650, and 18490) are a year old. I always make DH pack the four newest, silver marked, 14500, for his out of town trips. They even have their own row in the battery box. It is time to get a few new 14500. They will be marked with gold marker and they will be his and I'll get the silver marked ones. I'll still use the aging AWs but only at home. When they are getting "long in the tooth" not only do they not give as much vape time but they also don't hold a charge in storage box as long (self discharge rate increases.) That's the main reason I stopped using the IMR BDLs. They had a pretty fast self discharge rate, even when new. And if you have a bunch of them, by the time you get around to one that was charged a week ago it really needs another charge cycle to get adequate vape time and quality.
You, most often, get what you pay for in batteries used for high drain applications.
Hugs, Feisty Alice
Sorry Tripp I couldn't help myself
