Specific E Power questions?

[my4jewels]

I am currently awaiting the arrival of an E power 14650 and an 18650. I know I will REALLY like them based on what I have read. I do have a few specific questions.

Is the switch in these a mosfet switch like eGo's?

Will these have a steady output as the batt discharges during use?

Is this be a true 3.7v pv?

Other than modular, replaceable parts, and, of course, size, what are the major differences between the E Power and the eGo?

 

[ericdjobs]

Okay..this might start a debate but I own an e-power and a replacement switch.

From testing I've done, MY e-power and my replacement switch both output battery voltage... ie 4.2v full charge, and slowly drops.... doesn't seem like there's any regulation going on. batteries perform better fresh off the charger (I find myself constantly swapping them out at about 3.9v)

Now... lots of vendors/people will tell you the e-power is regulated to 3.7v! The current leading theory (We have a discussion over at teh gotvapes forum) is that there's two different models of switches... a regulated version and a true 3.7 version.

I'd really like a bunch of people with e-powers to test them and tell us what they find. Everything I've read says the e-power is regulated, but my own direct experience and my multimeter lead me to believe otherwise (And it can't be a faulty switch, as I have a spare switch and get the same result)... The only reason I TESTED it was because I was noticing a huge difference in performance as a battery would lose charge... I thought the e-power was regulated so I thought I was tripping... threw a fresh 14650 in it and performance noticeably increased... this led me to testing output with my multimeter

And people, please don't jump in here yelling at me "The e-power is regulated! U R DUMB!" without actually having one and testing one yourself... I honestly think there must be two version of the switch module floating around.

I don't know if the e-power has a mosfet in the switch..it shouldn't need one, but I do not know.

 

[my4jewels]

From what you have seen, what is the drop off like? How long til it hits 3.9? How low does it go when it is close to being discharged? Are you measuring it under load?

I'm just wondering if this will be any different than my eGo.

I don't have a meter, so I won't be able to measure anything when I get my e powers.

 

[my4jewels]

eric, I just went over and read that discussion.

I just ordered 10 14650's and 10 18650's right from Smoketech for a coop. Also an extra switch for each. I'll be keeping 2 of each + 4 extra switches. That would be 4 units and 8 switches. I could do some serious testing on them if: #1 ~ I had a meter, and #2 ~ I knew how to use a meter.

 

[TinyTimberGal]

This was posted in the Deals and Steals thread 2 days ago. Not sure if the sale is still on though.

Harbor Freight has a multimeter on sale..$3 here (7 Function Multimeter)

 

[my4jewels]

Thanks, I just ordered 2 of them. I will be able to test the e powers when I get them. Now I need to learn how to use this new toy!

This was posted in the Deals and Steals thread 2 days ago. Not sure if the sale is still on though.

Harbor Freight has a multimeter on sale..$3 here (7 Function Multimeter)

 

[ericdjobs]

From what you have seen, what is the drop off like? How long til it hits 3.9? How low does it go when it is close to being discharged? Are you measuring it under load?

I'm just wondering if this will be any different than my eGo.

I don't have a meter, so I won't be able to measure anything when I get my e powers.

The stock batteries (the 1050 mah ones) aren't the best, but the last me well over 24 hours using a boge 2.0 cartomizer.. if I can stand the voltage drop off. It seems to take awhile for them to get down to 3.9, i'd say a good 6 hours of heavy use.

But you see, I'm really picky when it comes to how I like my vape... my preferred vape now is 4.8v on my VV box with a 2.0 ohm carto, which is pretty damn hot compared to most lol.

I don't have an in-line voltage meter so I cannot test them under load, but I know that with a 1.5ohm dual coil the stock 14650 battery drops down to a staggering 3.4v freshly charged under load, this is due to being overstressed by the current demand of the dual-coil, though..

I find the IMR 14500s and the IMR 14650s perform the best, but if you have the 18650 device you probably don't have to worry about current demands.

 

[AttyPops]

eric, I just went over and read that discussion.

I just ordered 10 14650's and 10 18650's right from Smoketech for a coop. Also an extra switch for each. I'll be keeping 2 of each + 4 extra switches. That would be 4 units and 8 switches. I could do some serious testing on them if: #1 ~ I had a meter, and #2 ~ I knew how to use a meter.

Thanks, I just ordered 2 of them. I will be able to test the e powers when I get them. Now I need to learn how to use this new toy!

my4....I think you're my current hero. Just based on quantity. Just say'n.

I wasn't under the impression that it was regulated. I've also heard that there's a version 2. So that may explain the different switches. Anyway sounds like it follows battery voltage.

Of course there's a difference in the vape between 4.2 volts and 3.7ish. But if you size the atty/carto for the 3.7 it will over-hit at the start and stay good longer, then drop off at the end. So I'd say get your atty ohms in line with 3.7. That's what I did when I used 3.7 mods.

Curious to see what you come up with on the mosfet/regulator issue, as I have my eye on these.

The eGo units are more like 3.2 - 3.4 volts under load. They are modulated (pulsed). The Riva's are regulated closer to 3.7 and would be similar to this in voltage although the e-power sounds unregulated. Also e-power would be slightly larger due to battery size.

Got a spare/good battery charger???????

 

[my4jewels]

Well, Pops, I must admit that 1 of each are for my hubby, and 1 of each are for me. We also have 2 extra batteries for each unit.

The sales rep from Smoketech just emailed me back that the E power DOES have a mosfet switch, exactly the same as an eGo. He is looking into whether or not it's regulated at 3.7v.

 

[my4jewels]

Eventually, I see myself with a VV mod.

The stock batteries (the 1050 mah ones) aren't the best, but the last me well over 24 hours using a boge 2.0 cartomizer.. if I can stand the voltage drop off. It seems to take awhile for them to get down to 3.9, i'd say a good 6 hours of heavy use.

But you see, I'm really picky when it comes to how I like my vape... my preferred vape now is 4.8v on my VV box with a 2.0 ohm carto, which is pretty damn hot compared to most lol.

I don't have an in-line voltage meter so I cannot test them under load, but I know that with a 1.5ohm dual coil the stock 14650 battery drops down to a staggering 3.4v freshly charged under load, this is due to being overstressed by the current demand of the dual-coil, though..

I find the IMR 14500s and the IMR 14650s perform the best, but if you have the 18650 device you probably don't have to worry about current demands.

 

[Nomoreash]

The sales rep from Smoketech just emailed me back that the E power DOES have a mosfet switch, exactly the same as an eGo. He is looking into whether or not it's regulated at 3.7v.

I've wondered about that, looked to be the same, good thing it's user replaceable.

 

[Morandir835]

Ericdjobs sir is that being tested on load?

 

[my4jewels]

eric said he did not have an in line meter, so he could not test them under load.

Ericdjobs sir is that being tested on load?

 

[ericdjobs]

Ericdjobs sir is that being tested on load?

Nope I don't have a way to test it loaded. I guess I could rig up a connector from an old carto, might have what I need

But even with the voltage drop loaded, why would there be such a big difference between a freshly charged battery and one that's about to die?

Like, in my VV box which uses a switching regulator, the vape is totally consistent at a given voltage until I need to recharge the batteries, this is actually kind of sketchy with IMRs because their lack of a protection circuit... you could get carried away and discharge them way past the safe limit.. With the E-Power, I've never actually made it to a 'light flashing' dead battery because the performance goes down noticeably and I end up replacing it to get a better hit.

Don't get me wrong, if there's some kind of circuitry in there that manages to detect when there's a load, and only regulate the voltage when a load is attached... then that would explain it. This is a bit outside of the scope of my understanding, so if someone is more informed please let me know because I am so damn curious about this. It's kind of bugging me really.

 

[my4jewels]

I had heard they were looking at the development of a 5v switch and a VV switch as well for these. They now have the eGo booster which can turn the eGo into a VV device, so maybe it's not too far in the future.

I've wondered about that, looked to be the same, good thing it's user replaceable.

 

[hairball]

I've been twiddling my thumbs about the 18650 version. I love VV's and my Prodigy's at 3.7V. I'm still trying to decide if buying one is worth it or to invest in another VV mod. Thank you for the information...I'll keep pondering it.

 

[Morandir835]

Ericdjobs sir, know with egos that when tested without a load they will read at 3.9v, but with load 3.2-3.4 depending on the manufacture. Same goes for the regulated kr808's, they will read at 4.2v at full charge if there's no load, but 3.6v the moment a carto is attached... With the provari, the 18650 will test at 4.2 on the multimeter, but if you use the check batt function with a carto/atty attached, usually drops to 4.0.... Load really does make a difference...

 

[Sdh]

I have a screw on type voltmeter. When fresh it measures 4.2. It is a generation 2 switch if that helps. 14650 batts. If it was like an ego I would not be able to register a reading with the voltmeter.

 

[ericdjobs]

Ericdjobs sir, know with egos that when tested without a load they will read at 3.9v, but with load 3.2-3.4 depending on the manufacture. Same goes for the regulated kr808's, they will read at 4.2v at full charge if there's no load, but 3.6v the moment a carto is attached... With the provari, the 18650 will test at 4.2 on the multimeter, but if you use the check batt function with a carto/atty attached, usually drops to 4.0.... Load really does make a difference...

Oh yes, I understand load makes a difference. But voltage sag under load is a lot different than regulation.

This is one of the reasons I use IMR batteries in my e-power. They are able to discharge more current, so they sag MUCH less under load, around .2v in my experience.

I just disagree with suppliers/vendors and the manufacturer claiming it's regulated when (at least some) models are not. I love that my e-power isn't regulated.. but someone might have bought it expecting a consistent vape from battery start to finish.. it appears (at least some) do not deliver on this claim.. but at the same time delivery a better vape, more suited to my tastes.

 

[my4jewels]

Okay, I have an answer from Smoketech. This is what the Smoketech rep said,

"Our current Mosfet e power switch is not 3.7 v regulated, it's the same switch as the ego battery, the voltage will be lower after using.
but we can make 3.7v regulated switch."