std is 3.2 ish volts for the small e-cigs.
Riva's (fat batt) are 3.7 volts eGo 3.4 v
Voltage is not variable by you on those
devices. Ohms, OTOH are selectable by you.
Ohms is the resistance rating of the atty/carto. It's used to limit electrical flow. So the lower the #, the less resistance, and the hotter the vape (drains batt faster too).
You can order atty/cartos any any ohms... from 1.5 to 3.0. Normally they don't suggest the LR stuff (below say 2.8) on the small
batteries. I've used 2.5 on em without issue. lol. They can't supply many amps, so it stress them a bit but meh.
For the riva, I'd use 2.0 ohms or higher. 2.0 ohms are often recommended for eGo stuff too due to possible issues with 1.5 ohm stuff (either over-
vaping, or shorts heating up the electronics too much).
Basically if you get 2.0 ohm stuff or higher, you're OK. I'd even try the 2.0 ohm on the small battery...lol.. since they don't supply enough amps. However, I'd probably shorten the life or fry it, and I'd be careful not to over-heat/over-vape it. They don't last very long anyway.
Hope this helps.
