Maybe I should replace the word "should" with "could." No verification other than my own personal experience and that of the poster I quoted. I realize two different devices are not going to be identical, however with my personal usage the IPV Mini 2 with the same battery, tank and wattage settings outlasts my Cloupor Mini.
I happen to love my CM and don't mind battery swapping, and I'm thankful I'm not having some of the issues others have reported. I was on the fence about replacing it altogether, but since it functions beautifully I decided to keep it and just add to my collection.
An iPV Mini 2 70W arrived in the mail yesterday, augmenting my stable of iStick 20s (5) and 30s (2) and Cloupor Mini 30s (one so far with another coming). I figured at least one "high-wattage" device would be good to have (although 70W is probably no longer considered "high"). No obvious winner stood out among the inexpensive 60-100 watt box mods---oh sure, the SX Mini is the obvious pick of the litter, it's 190 bucks. The iPV Mini 2 won out for me based on price, performance, reports, ease of battery swapping, and ergonomics.
At the 10-day mark with my Cloupor Mini, I've become accustomed to swapping out the Samsung IMR18650 25R twice each day. No big deal, since it takes only about a minute to change batteries, start to finish, but two times each day was a slight surprise, since I'd expected that a single swap per day would be likely with a 30-watt mod running tanks at less than 20 watts.
After about 12 hours of vaping with the iPV Mini (not by itself---I keep loads of PVs loaded and ready on my desk, and I go back and forth from one to another), I noticed that the battery bar hadn't gone down at all. Wow. That was unexpected. Now, after one full day of intermittent vaping, the iPV Mini 2 is still on its first Samsung, yet the graphic battery bar indicator in the display remains 7/8 full.
Do the respective chips perform at comparable efficiencies? The iPV Mini 2 uses the Yihi SX330v2c, while the Cloupor Mini uses the Yihi SX300 (Cana DNA30). Or maybe it's the tanks: my iPV Mini 2 has an Erklonigin Nano tank built to 1.1 ohms running at 11 watts, while the Cloupor has been armed with a Kayfun Lite built to 1.6 ohms running at 13 watts. That seems like rough equivalency to me, but maybe not. My Kayfun's coil is 26-gauge, whereas this Erl is built with 29-gauge kanthal, so perhaps the Kayfun is using more amps. Whatever.
No hard science involved, and one day is hardly a reliable "test" at all---but I notice the difference because it's so pronounced, almost to the point of being dramatic. My various iSticks' 2200 mAh LiPo batteries seem to drain somewhere in the middle---faster than the iPV Mini 2, but slower than the Cloupor Mini.