Grokzor

I have a couple of FIN cigs and have purchased some juice PG 80% and VG 20% have tried refilling but not very good results. Bought some Blu refills and have refilled some of them also - not lasting long So I ordered the Viva Nova starter and some extra coils - my question is will the juice mix I have work with this? and I think the battery will for short durations - 2 hours or so - should I get a better battery? will my charger work with it? appreciate any help Grok