IPV4 series or parallel?

[Completely Average]

Obviously it's not out yet but I've been having a really hard time finding a definitive answer on this question. Is the IPV4 a series or parallel mod.


Most of the things I've read says it's series. However, it's got a max voltage of just 7V which would mean if it's running in series then it's going to buck the voltage near 100% of the time. Seems rather pointless to make a series mod that can't use the actual voltage that a series mod provides. I have read a few recent comments that suggests it's running the batteries in parallel which makes a lot more sense (Increases the amps which allows for lower resistance coils, but doesn't increase the voltage output of the batteries), but I can't seem to find a clear answer one way or the other.

Anyone here know which way the batteries are configured? Or are we all just guessing until it's actually released.

 

[IML8]

It looks like the Yihi SX330-V4S reqires a minimum Input Voltage of 6.2. That would indicate 2 batteries configured in series.

You simply can't get 6.2 volts of input voltage to the chip from any amount of 18650 batteries connected in parallel.

 

[sando7]

yep, series

 

[Dryadsoul]

Hey CA, i haven't a clue. However, if you have great vision you might be able to discern the wiring from this video @ 1:40 - 2:10.
That"s a full 30 seconds of battery box closeup.

D'ho, forgot the link : https://www.youtube.com/watch?v=ibSE4K91lU0

 

[Petabread]

Can I ask the stupid question of "what does that mean?" What would make that different versus the ipv3 for example?

 

[IML8]

Can I ask the stupid question of "what does that mean?" What would make that different versus the ipv3 for example?

With no circuitry between the battery and the chip to manipulate it, the maximum voltage the typical 18650 can deliver to the chip's input is 4.2 volts. Connecting batteries in parallel does not add volts. It distributes amp loads. Batteries connected in series adds volts together, so that 2 fully charged typical 18650 batteries connected in series could deliver a maximum of up to 8.4 volts of input to the chip. Is this what you were asking about, Petabread?

 

[Completely Average]

It looks like the Yihi SX330-V4S reqires a minimum Input Voltage of 6.2. That would indicate 2 batteries configured in series.

You simply can't get 6.2 volts of input voltage to the chip from any amount of 18650 batteries connected in parallel.

That makes sense.

What doesn't is the fact that the IPV4 apparently bucks voltage while boosting amperage. Seems like a backwards solution to end up simulating a parallel setup. At least according to the user manual it has a 7V maximum output and a 40A maximum output. From an electrical point of view that would be easier with two 20A-30A batteries in a parallel setup than series. Then all you would need to do is buck/boost the voltage.

Not that it REALLY matters one way or another, but it just seems like an odd way of achieving that end result.

 

[Petabread]

With no circuitry between the battery and the chip to manipulate it, the maximum voltage the typical 18650 can deliver to the chip's input is 4.2 volts. Connecting batteries in parallel does not add volts. It distributes amp loads. Batteries connected in series adds volts together, so that 2 fully charged typical 18650 batteries connected in series could deliver a maximum of up to 8.4 volts of input to the chip. Is this what you were asking about, Petabread?

I think so lol. Thanks for the response. So is series better, or parallel?

 

[tehdarkaura]

I believe the manual says the input voltage is a single cell -- I know it was originally planned to be a series mod -- and likely it is indeed a series mod -- but i believe the manual is saying it is parallel -- maybe it will be fixed? I doubt they added a boost circuit to it....

 

[tehdarkaura]

Well... there it is in the manual -- again -- i suspect this is not true... but its there ....

 

[IML8]

So is series better, or parallel?

I don't know if one is better than the other. I would say that if someone really wants to vape with the IPV4 in the 70 to 100 watts range they better get batteries rated for 35 amps and not the 25Rs.

 

[Completely Average]

I think so lol. Thanks for the response. So is series better, or parallel?

Neither is "better". They achieve two different things and which you use depends on which needs you have.

If you need more than 4.2V input charge then you have to have series. There is no way to get more than 4.2V from a parallel setup.

If you need more mAh then you have to have parallel. Series discharges both batteries as a single battery.

When you run batteries in parallel you also get about a 40% increase to the amps, but it's possible to use boost circuitry to increase the amps output on a series setup.

I don't know if one is better than the other. I would say that if someone really wants to vape with the IPV4 in the 70 to 100 watts range they better get batteries rated for 35 amps and not the 25Rs.

Good luck on getting any 35A batteries. There are none. The highest continuous amp batteries out there are 30A, and only three companies make those. Actually only two companies make true 30A continuous discharge batteries. Xtar simply rewraps Sony VTC4 batteries.

Efest batteries say 35A on the wrapper but that's the pulse rating, not the continuous discharge rating. They're really only 20A batteries.

 

[IML8]

The Samsung 25Rs will suit my needs just fine.

 

[sando7]

High Drain IMR 18650 Battery 30A Orbtronic SX30 rechargeable Li-ion Li-Mn

 

[Treeburner1983]

High Drain IMR 18650 Battery 30A Orbtronic SX30 rechargeable Li-ion Li-Mn

I would not trust any batteries sold by Orbtronic, especially when legit Samaung 25r's can be had for $6/ea. Hopefully they're rebranded VTC4s, but of what quality?

-Treeburner

 

[sando7]

^^^^^^^^^^^^^^^^this battery (SX-30 by orb.) is a "30" amp continuous alternative not a 20 amp (25-R)...these batteries are highly suggested by Vetran Vapors here at ECF as an alternative to Sony VTC's.....i would not say they were re-wrapped Sony's unless i really knew?...yet this is also my "guess"

 

[Vooper]

All the Orbtronics batteries are rewraps, they don't produce their own cells.

Pretty sure it's not actually a 30a battery either.

 

[sando7]

personally i would trust the Orb, Sony VTC's as 30A and if i were to use very high wattage on the up-coming IPV4, i would use them over the Sammy any day....

i also trust Bad's opinion of Batts to use, but that is just me.
| E-Cigarette Forum

 

[Vooper]

The 25Rs are rated from Samsung at 100a momentary pulse, run cooler than the Sony cells, and are about as safe as batteries come.

I'll stick with Samsung.

 

[sando7]

i own several pairs of Sammy's myself yet i don't vape at super high wattages w/them....


my first reply was about vaping on the IPV4 over 70 watts w/temp control and alternative (besides Sony) batts that are suggested to do so, if you want to use Sammy's to do that then more power to ya......yet i would suggest a 30amp "Continuous" battery to do so...