Longest Lasting 18650?
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...And how much you use it--length of and number of hits. I got a day out of efest 3100's in a Chana 30w and I vape at 1.2 ohms at 8.5 watts, and 3 days on my Vapor Flask DNA 40 at 0.2 ohms and 17 watts. That's 2 VTC5's. I use Panasonic PDs in my mechs becaus I like the discharge profile. There's a LOT to take into consideration.
What wattage are you vaping at?
Current can be calculated by dividing the watts by resistance, then taking the square root. So if your coil is 0.8 ohms and you're hitting it with 40 watts, your amp draw is
sqrt(40/0.8) = sqrt(50) ~ 7.07 amps. Even if you have a 3000 mAh battery (which they don't make with amp limits high enough for the IPV2, to my knowledge) it would only last 3/7.07 ~ 0.424 hours, or 25 minutes pressing the button continuously.
Long story short, even moderately high wattage vaping requires having spare batteries at your disposal. I vape at 15 watts all day, and often need to change my 2900 mAh battery near the end of the day. The IPV2 probably requires at least 20A continuous batteries, and they're hard to find with high capacities; they just don't really exist, sadly.
The calculation isn't 100% accurate, but it lands you in the right ballpark for amp drain. It actually overestimates how long your battery will last, pressed continuously.
Current can be calculated by dividing the watts by resistance, then taking the square root. So if your coil is 0.8 ohms and you're hitting it with 40 watts, your amp draw is
sqrt(40/0.8) = sqrt(50) ~ 7.07 amps. Even if you have a 3000 mAh battery (which they don't make with amp limits high enough for the IPV2, to my knowledge) it would only last 3/7.07 ~ 0.424 hours, or 25 minutes pressing the button continuously.
Long story short, even moderately high wattage vaping requires having spare batteries at your disposal. I vape at 15 watts all day, and often need to change my 2900 mAh battery near the end of the day. The IPV2 probably requires at least 20A continuous batteries, and they're hard to find with high capacities; they just don't really exist, sadly.
The calculation isn't 100% accurate, but it lands you in the right ballpark for amp drain. It actually overestimates how long your battery will last, pressed continuously.
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Sorry, forgot to include the wattage I usually use. I'm generally vaping at between 30-40 watts, so it drains pretty fast.
The web address included may help you with a battery selection. Sorry, can't post links yet so there are a few spaces in the link. This site helped me understand the batteries used for vaping. Be sure to make note of the safe ohm rating.
___.woodcreekvapory .com/ vaping-batteries-the-good-bad-and-the-ugly/
___.woodcreekvapory .com/ vaping-batteries-the-good-bad-and-the-ugly/
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