Button Top? IMR or ICR?
To tell the truth... the info provided by badkola is way to limited to guess at much here...
The capacity indicates that it isn't an IMR battery... the rest depends on the specs that were purchased by joyetech since Panasonic makes them in both flat and button top, protected and unprotected etc. The lowest discharge C rating I found indicates they can probably provide just under 1C ... or 2.9a ..... but the info I found was so limited on the various Panasonic batteries, that I have no way to be certain.
If a person vapes at lower wattage settings, these will probably work just fine for them... at higher wattage settings, I'd probably go with an IMR type of battery and even if it has a lower capacity, it may still outlast these since they are made to handle higher current better. Panasonic makes great batteries... but I still feel the eVic should use a high drain battery overall even if this type can provide current, it isn't made to do it as well.