Hey Walt, sorry this took me a couple days to see. I've just moved and started a new job and I haven't been on ECF as much lately.
With the 510's, 2 hours is moderate vaping. I actually get about an hour and a half, as a somewhat heavy vaper.
If charged and then stored away unused, it will hold a charge for quite a while - months, probably.
Either the 510 or the Kr808 will probably give you a better experience than the njoy. If want the 510 but don't want the short battery life, and you can deal with a thicker e-cig, the eGo is a great choice. It's pretty close to the same length as the 510 - maybe a few mm longer - but mostly just thicker, like a very small cigar. But, it goes most of a day for me. And it really doesn't feel that big.
If you don't want to compromise on that, try the Kr808. I get 4-5 hours out of the battery, and it's pretty much the same size as the 510.
With the 510's, 2 hours is moderate vaping. I actually get about an hour and a half, as a somewhat heavy vaper.
If charged and then stored away unused, it will hold a charge for quite a while - months, probably.
Either the 510 or the Kr808 will probably give you a better experience than the njoy. If want the 510 but don't want the short battery life, and you can deal with a thicker e-cig, the eGo is a great choice. It's pretty close to the same length as the 510 - maybe a few mm longer - but mostly just thicker, like a very small cigar. But, it goes most of a day for me. And it really doesn't feel that big.
If you don't want to compromise on that, try the Kr808. I get 4-5 hours out of the battery, and it's pretty much the same size as the 510.