one thing you need to look out for on that is with the manual
batteries like the ones Tv offers, a lot of PCCs are set up for automatic
batteries. In order for a PCC to charge a manual battery, you need a PCC that has a groove for the button on the manual battery to fit down into. Without this groove, a PCC will pop your button right off. I have a PCC like this with the groove for a manual bat but the groove is not quite big enough for the larger sized button on the TV battery.
I can recommend getting a second ego battery and if you are going to go out for a few days, take them both. I
vape heavily and in a full day I still can rarely kill my ego battery. I think it's only happened once in the month that I've had it.
Regular 510's die on me about 2-3 times a day, and even with a PCC, if you are to be out camping or something, I'd much rather have 2 charged ego batts than a few manual 510 batts and a PCC. For this reason, I rarely use my regular 510 batts anymore and am constantly using the ego.