Multiple 18650 mod battery question.

[Abec777]

Hallo guys.
This was never clear in my mind.
If your mod takes 2x 18650 batteries, and you decide to use two 10A.
Can you effectively use sub-ohm/voltage like you would do with a single 20a battery?

Is is 2x10A = 1x20A battery performance wise ?(im not talking about capacity of course)



Thanks for your time.

 

[cj081283]

No. It doesn't necessarily double the amperage in most mods running a series wiring setup which most regulated devices do. It doubles the voltage so its 8.4 instead of 4.2 so each cell sees less stress.

In parallel setups which I only know of one regulated setups but is more common in mechs is still a duel cell your voltage stays at 4.2 but your cdr increases. I've heard double and 1.5 for safety reasons.

And series mechs which start off at 8.4 volts and drain down but still with the CDR of a single cell device.

Edit: its late so someone will probably explain better then me.
Sent from my KYOCERA-E6560 using Tapatalk

 

[BigEgo]

Hallo guys.
This was never clear in my mind.
If your mod takes 2x 18650 batteries, and you decide to use two 10A.
Can you effectively use sub-ohm/voltage like you would do with a single 20a battery?

Is is 2x10A = 1x20A battery performance wise ?(im not talking about capacity of course)



Thanks for your time.

I see your agni, and I'll bring my Janus.

As to your question, depends on if the mod is series or parallel.

 

[Abec777]

haha ill be using 3 of them on rx200

 

[Lova]

haha ill be using 3 of them on rx200

Reuleaux RX200 is wired in series. It's also regulated mod. Here's a helpful post I came across a while back on calculating amp draw for regulated mods: PSA: You Don't Calculate Current Draw on Regulated Mods Like You Do on Mech Mods • /r/electronic_cigarette

 

[Abec777]

Ok i guess ill be safe running 0.15 hms on 3x VTC5.
Thank you for your time guys!

 

[beckdg]

Power is what you need here.

Otherwise you get into the series vs parallel and regulated vs mech math and functionality discussions.

Figure out how many watts you can use at maximum amp load for each battery. Multiply that for as many batteries as your mod holds.

Use 3 or 3.2 volts to calculate your max cell wattage.

Tapatyped

 

[Hans Wermhat]

i guess ill be safe running 0.15 hms on 3x VTC5.

Don't guess. It's not about the ohms. It's about how many watts you throw at the build. VTC5's are 20A batteries, so don't go above about 85W with them.

 

[sparkky1]

Hallo guys.
This was never clear in my mind.
If your mod takes 2x 18650 batteries, and you decide to use two 10A.
Can you effectively use sub-ohm/voltage like you would do with a single 20a battery?

Is is 2x10A = 1x20A battery performance wise ?(im not talking about capacity of course)



Thanks for your time.

Depends on the wattage you are planning to use, do you know what their (vtc5) amp limit is ? and NO the amps do not double with two battery's ...........

 

[Abec777]

If Lovas readup is corrcet you multiply the voltage in series.So effectively i have 3x3=9v since rx200 its inline.
At 100watts 100/9 = 11 amps.I use only 30 watts on 0,15 ohm so its super safe.I could even use unprotected panasonic 3400s batteries.

 

[Topwater Elvis]

With a regulated power device amp demand from the batteries will be highest at their lowest voltage.
Resistance is irrelevant when calculating battery amp drain/draw using a regulated power device. Amp drain depends on output power range used & actual battery voltage.

Just before & at your power device low voltage cutoff amp drain will be the highest.
6.4v / 150w = 23.4a
6v / 150w = 25a
9v / 150 16.6
9v / 200w 22.2a

The 2 - 3 battery setups share the load equally is a myth.
In theory it works that way, but, in the real world there are about a dozen variables that all have to be 100% for that to actually happen.

You'll gain nothing using lower amp batteries, why buy a 100w ~ 200w power device & limit yourself to 35w ~ 40w due to the batteries you chose.

The price difference between 10a & 30a batteries is basically none.

 

[Abec777]

With a regulated power device amp demand from the batteries will be highest at their lowest voltage.
Resistance is irrelevant when calculating battery amp drain/draw using a regulated power device. Amp drain depends on output power range used & actual battery voltage.

Just before & at your power device low voltage cutoff amp drain will be the highest.
6.4v / 150w = 23.4a
6v / 150w = 25a
9v / 150 16.6
9v / 200w 22.2a

The 2 - 3 battery setups share the load equally is a myth.
In theory it works that way, but, in the real world there are about a dozen variables that all have to be 100% for that to actually happen.

You'll gain nothing using lower amp batteries, why buy a 100w ~ 200w power device & limit yourself to 35w ~ 40w due to the batteries you chose.

The price difference between 10a & 30a batteries is basically none.

I want the maximum "out of charger time".Im vaping a good 5ml per day
I know the coil omh doesnt play a role.I was trying to find out if it can actually handle the extra watts.But after trying the Ni coil at 30 watts it performs just as i like it.Also at TC mode anything over 50 watts and the 225 Celcious limit im using is like like in 2 second if i dont inhale too strong.
I even tried it at 200 watts but you must inhale like a godzilla not to hit the temp limit within a sec.

 

[Topwater Elvis]

5 mls per day / 30w is fairly light vaping, any decent 2500mah+ battery should last most of the day if not all day.
Are you using a good charger & batteries to begin with?

Any of the good quality 3000mah 20a CDR batteries should work.

I'm not understanding your question, I guess.

The reason you use the correct/proper battery CDR for the power device & power range is so at any time you can go higher without being limited by your batteries, or so you don't push them which will reduce their life or end up in a dangerous situation.

A 20a cdr battery that is used at 8-10a will last longer than a 20a pushed to 20a everyday.
If you use 10a batteries at 8-10a you will get shorter run/vape time & lifespan.
The chip draws amps to supply volts / watts /power to the delivery device.
It's just how stuff works.

You may want to read Mooch's battery blogs, especially picking the right battery for the job. ---> Mooch's blog | E-Cigarette Forum