Ijoy Captain PD270 - 20700 dual battery

[eLCruz]

ta, since my old post i updated my charger results for 20700 in Mooch's 20700 charger topic in battery section.

Issue is the length indeed, Luc V6 will not fit, not even close, V4 and blu6 seem to.. Opus/Soshine/all xtar seem wonderful with the 20700

Its not 650 to 700, its 65 to 70. The last 0 is for round shape. So all you need is 5mm. My Nitecore i4 fits them fine.

Sent from my SM-N910T using Tapatalk

 

[Vesh]

Its not 650 to 700, its 65 to 70. The last 0 is for round shape. So all you need is 5mm. My Nitecore i4 fits them fine.

Sent from my SM-N910T using Tapatalk

I know that.. one needs a charger that has at least 70mm in the spring travel to fit them.. what gave you the impression I thought otherwise in my post just now?

 

[eLCruz]

I know that.. one needs a charger that has at least 70mm in the spring travel to fit them.. what gave you the impression I thought otherwise in my post just now?

Sorry vesh, it was in the quote from listopencil. 650-700=50.

Sent from my SM-N910T using Tapatalk

 

[markfm]

Old xtar (wp2 II) don't work (those were workhorse chargers [emoji5])

 

[TrollDragon]

Last Wednesday I put a freshly charged pair of Sanyo 20700B's in the Captain, set it to 65W and tossed on the iJoy EXO RTA using a 0.31Ω Tsuka coil and would run it until the low battery error appears.

Well 6 days and 295 5 second puffs later, I just got the Low Battery error. So there is a baseline to start with if anyone wants to compare it against some 3000 mAh 18650's (HG2, 30Q or VTC6). I am not going to do it as I have an Aromamizer Plus sitting all sad and neglected on a stand. The iJoy batteries are going back in and the power going back to 110W.

I probably could have run the 20700B's a little higher in wattage. The Captain showed ~14.7A draw but that is from the chip to the coil. Using Mooch's calculations for regulated mod, 65W/6.4V (Cutoff) / ~90% (Assumed Efficiency) = 11.3A of battery drain. Running the wattage lower would have provided a longer run time but I can only vape so low...

 

[100%VG]

Last Wednesday I put a freshly charged pair of Sanyo 20700B's in the Captain, set it to 65W and tossed on the iJoy EXO RTA using a 0.31Ω Tsuka coil and would run it until the low battery error appears.

Well 6 days and 295 5 second puffs later, I just got the Low Battery error. So there is a baseline to start with if anyone wants to compare it against some 3000 mAh 18650's (HG2, 30Q or VTC6). I am not going to do it as I have an Aromamizer Plus sitting all sad and neglected on a stand. The iJoy batteries are going back in and the power going back to 110W.

I probably could have run the 20700B's a little higher in wattage. The Captain showed ~14.7A draw but that is from the chip to the coil. Using Mooch's calculations for regulated mod, 65W/6.4V (Cutoff) / ~90% (Assumed Efficiency) = 11.3A of battery drain. Running the wattage lower would have provided a longer run time but I can only vape so low...

Mooch rated the 20700B at 16A CDA (no MVA listed), so rearranging W / V / 0.9 = A, then to calculate for Max Safe Watts, I get W = A x V x 0.9. Calculating for 16A, I get...

Max Safe Watts = 16A x 6.4V x 0.9 = 92.16W. Presuming that I did this right, you'd probably enjoy the vape a lot more at 92W instead of 65W, and still not go over the 20700B CDA rating.

And if the Wattage difference tells us anything accurately, 65W / 92W = 0.70652, or 70.65% of the time you got at 65W. Of course this is a guess (or rough approximation), but 70.65% of 6 days = 4.24 days. So you can anticipate getting about 4 days of vaping at 92W. If any of this is true, that's pretty impressive. Maybe even more, because you wouldn't have to take 5-second puffs.

If not, then please correct me.
.

 

[listopencil]

Last Wednesday I put a freshly charged pair of Sanyo 20700B's in the Captain, set it to 65W and tossed on the iJoy EXO RTA using a 0.31Ω Tsuka coil and would run it until the low battery error appears.

Well 6 days and 295 5 second puffs later, I just got the Low Battery error. So there is a baseline to start with if anyone wants to compare it against some 3000 mAh 18650's (HG2, 30Q or VTC6). I am not going to do it as I have an Aromamizer Plus sitting all sad and neglected on a stand. The iJoy batteries are going back in and the power going back to 110W.

I probably could have run the 20700B's a little higher in wattage. The Captain showed ~14.7A draw but that is from the chip to the coil. Using Mooch's calculations for regulated mod, 65W/6.4V (Cutoff) / ~90% (Assumed Efficiency) = 11.3A of battery drain. Running the wattage lower would have provided a longer run time but I can only vape so low...

I can see that I have a lot of Mooch researching to do, lol.

 

[GeorgeS]

(sigh) Yet another miss-step from iJoy. Maybe they will get the TCR range opened up so I can consider this mod.

I do like (I own two) the Lux - sadly it works best with Ni200 coils so I have a dual Ni200 build in a AS I use with it. The batteries on the Lux easily outlast any other mod I own. (also sadly they stopped updating the firmware at 1.2)

Maybe 1.5 or 1.6 will do it.

 

[listopencil]

xx-xx-x is diameter-length-shape with 0 being round. 70-65 is 5mm not 50mm

Its not 650 to 700, its 65 to 70. The last 0 is for round shape. So all you need is 5mm. My Nitecore i4 fits them fine.

Sent from my SM-N910T using Tapatalk

Sorry vesh, it was in the quote from listopencil. 650-700=50.

Sent from my SM-N910T using Tapatalk

Just to avoid confusing anyone, when I was looking at the dimensions of the battery and comparing them to the room in my charger:

The 18650 battery is (by standard) 18 mm across and 65 mm long. I included that last 0 in 18650 by mistake. The 20700 is only 5 mm longer than the 18650.

I slipped a decimal. That caused my calculations to be off by one decimal place. So I counted the difference in lengths of the batteries as 50 mm instead of 5 mm. Five millimeters is only 0.19685 inches. If you have 0.19685 inches of space (by length) in your charger bay you'll be fine.

 

[Steamer861]

Well after all most 2 months to the Day! PostNL finally delivers
After all the "Bad Press" I was expecting the worst
I updated mine to 104 right away! I'm running them in "TC" with Titanium wire & their working Fine!
They seem very solidly built & are surprisingly small for dual 20700's
The menu is very basic! Their no DNA's! But for 45$ each with 2 included batteries, they were a good buy
I just got them yesterday & haven't used them much yet, but first impressions are fairly good!

 

[TrollDragon]

Well after all most 2 months to the Day! PostNL finally delivers
After all the "Bad Press" I was expecting the worst
I updated mine to 104 right away! I'm running them in "TC" with Titanium wire & their working Fine!
They seem very solidly built & are surprisingly small for dual 20700's
The menu is very basic! Their no DNA's! But for 45$ each with 2 included batteries, they were a good buy
I just got them yesterday & haven't used them much yet, but first impressions are fairly good!

Nice!
Do share your Ti build with us please.

 

[TrollDragon]

Mooch rated the 20700B at 16A CDA (no MVA listed), so rearranging W / V / 0.9 = A, then to calculate for Max Safe Watts, I get W = A x V x 0.9. Calculating for 16A, I get...

Max Safe Watts = 16A x 6.4V x 0.9 = 92.16W. Presuming that I did this right, you'd probably enjoy the vape a lot more at 92W instead of 65W, and still not go over the 20700B CDA rating.

And if the Wattage difference tells us anything accurately, 65W / 92W = 0.70652, or 70.65% of the time you got at 65W. Of course this is a guess (or rough approximation), but 70.65% of 6 days = 4.24 days. So you can anticipate getting about 4 days of vaping at 92W. If any of this is true, that's pretty impressive. Maybe even more, because you wouldn't have to take 5-second puffs.

If not, then please correct me.
.

All good calculations there!

I didn't want to run the batteries near Mooch's CDA rating, so I kept the wattage quite conservative. I remember something mentioned about a point where you are no longer gaining the benefit of extended capacity using a higher current draw. But I could be mistaken, or it could have even been from the 18650 vs 26650 postings.

Back in the old Kayfun days, these 20700B's would have lasted for weeks between charges!

 

[Steamer861]

Nice!
Do share your Ti build with us please.

In the +'s I use dual spaced 3 mm 24 gauge Ti coils.
I keep them quite high off the deck to get them right in the Air Flow opening

 

[KenD]

Mooch rated the 20700B at 16A CDA (no MVA listed), so rearranging W / V / 0.9 = A, then to calculate for Max Safe Watts, I get W = A x V x 0.9. Calculating for 16A, I get...

Max Safe Watts = 16A x 6.4V x 0.9 = 92.16W. Presuming that I did this right, you'd probably enjoy the vape a lot more at 92W instead of 65W, and still not go over the 20700B CDA rating.

And if the Wattage difference tells us anything accurately, 65W / 92W = 0.70652, or 70.65% of the time you got at 65W. Of course this is a guess (or rough approximation), but 70.65% of 6 days = 4.24 days. So you can anticipate getting about 4 days of vaping at 92W. If any of this is true, that's pretty impressive. Maybe even more, because you wouldn't have to take 5-second puffs.

If not, then please correct me.
.

Driving the batteries at or close to their cdr would probably cut the runtime considerably.

Sent from my K6000 Pro using Tapatalk

 

[ShowerHead]

Update time.
I've had this mod for 'a while' now. I run SS 430, currently 27 ga single wire.
Steam Engine, my DNAs, and the build box all have a pair of these coils at 0.32 ohms.
This mod consistently has the pair at 0.306, which shows in the display as .31
The TCR value of 0.00138 gives a weak vape. Adjusting it upward to 0.00145 produces a very nice vape.

As both are consistent and it vapes really well, I don't really see it as a negative. I have to set the TCR for this material anyway, so I set it to what works for me. I didn't do a cotton scorching test. I simply 'feel' the temp as I take a hit.

The plus for me is that it is:
a- Consistent.
b- Looks good with my Pluses
c- The Sanyo 'B's last almost forever. I go by the S-E suggested wattage for the coils I use, currently 46W.
d- More comfortable in my hand than other mods.
e- Its really affordable!

I may order another now that this one has performed so well for me.

 

[markfm]

Good update. Like me you are getting the slightly low resistance reading, compensate, and "vape to taste".

As single coil vaper to me this is a bit of a hidden gem mod. Very comfortable in the hand, decently constructed, consistent operation, stellar run time.

(There's a new innokin oceanus single 20700 mod out, you can bet I entered the online giveaway [emoji5])

 

[TrollDragon]

In the +'s I use dual spaced 3 mm 24 gauge Ti coils.
I keep them quite high off the deck to get them right in the Air Flow opening

Nice!
I need to revisit Ti with some heavier gauge, preferably not Unkamem as I got tired of cleaning that stuff before use.

Edit:
And I did, just ordered some 24g Ti GR1, SS 430, Nife 48 and SS316L from Zivipf. There is no quality 24g Ti to be found anywhere and I wanted some bigger SS 430.

 

[janne303]

I need a new firmware... My captain reads my 0.27 coils as 0.20... All my other mods reads it 0.27

Skickat från min SM-G935F via Tapatalk

 

[TrollDragon]

I need a new firmware... My captain reads my 0.27 coils as 0.20... All my other mods reads it 0.27

Skickat från min SM-G935F via Tapatalk

That's the way the Captain works. You'll have to wait for iJoy to fix it...

 

[TrollDragon]

V1.4 is the latest, you can download it from the software page, you'll need the Update Installer as well..

IJOY - The World Leader in Electronic cigarette manufacturer/Maxo mod/Rdta tank-Software