Safe charging??

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Toxic Sadness

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I'm ready to upgrade, looking to order this week. I'm wanting to buy a longer lasting device, with more battery life. So that means removable batteries right? I currently have 2, istick 30w. Originally, I had my eye on the sigelei 150w but ......I was thinking about the istick 100w. (Leaves me more vape budget room bc it's dirt cheap lol)
Is it safe to use the onboard charger or do I Have to have a battery charger?



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IMFire3605

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I'm ready to upgrade, looking to order this week. I'm wanting to buy a longer lasting device, with more battery life. So that means removable batteries right? I currently have 2, istick 30w. Originally, I had my eye on the sigelei 150w but ......I was thinking about the istick 100w. (Leaves me more vape budget room bc it's dirt cheap lol)
Is it safe to use the onboard charger or do I Have to have a battery charger?



Vaping, the hobby that saved my life.

With 18650 batteries it is always best to use an external charger. On board chargers for LiPo packs like in a your iStick30w are tuned for that battery specifically and so work. I've got an IPV2 I occasionally charge the VTC5 in there when in a pinch and forgot to charge it the night before. Xtar, Efest LUC, and Nitecore Intelligent chargers really keep an 18650 in the best condition it can be for the longest without overcharging and at safer, lower trickle charging method to reduce stress on the battery unless specifically put into rapid charge mode which should not be used often (Xtar and Efest LUC chargers). If on a budget, you can find a Nitecore i2 Intellicharger for the price of a pair of batteries (10-15bucks)

RTDVapor
Illumination Supply
Imrbatteries
Orbtronics
Liion Wholesale

all 5 of those vendors are authorized authentic sellers of name brand batteries and chargers. The iStick100w is a very nice mod if you are on a budget, batteries for it I would suggest, Samsung 25R, LG HE2/HE4, LG HG2, Sony VTC5 on the 20amp safe CDR rating, LG HB6, Sony VTC3 or VTC4 on the 30amp safe CDR rating.

About 100 to 110USD you can get the iStick100w, 4 batteries, and a Nitecore i2 or D2 will setup you up pretty good.
 

Toxic Sadness

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all 5 of those vendors are authorized authentic sellers of name brand batteries and chargers. The iStick100w is a very nice mod if you are on a budget, batteries for it I would suggest, Samsung 25R, LG HE2/HE4, LG HG2, Sony VTC5 on the 20amp safe CDR rating, LG HB6, Sony VTC3 or VTC4 on the 30amp safe CDR rating.

About 100 to 110USD you can get the iStick100w, 4 batteries, and a Nitecore i2 or D2 will setup you up pretty good.
Thank you :) yes, I was thinking Samsung 25r. I will check out those places.




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Toxic Sadness

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I agree with IMFire. I don't trust USB chargers for removeable external batteries.

Since you sound like you're new to batteries, please read:

Battery Basics for Mods

Deeper Understanding of Mod Batteries
I read the links, now I'm more confused lol
.3 would be the lowest I can see myself building, but I did .2 incase. Is this not safe for 2, Samsung 25r batteries in the istick 100w?
8ffbd07540ab0ef6047e894d3b2c9604.jpg



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Baditude

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1.0 ohm = 4.2 amp draw
0.9 ohm = 4.6 amp draw
0.8 ohm = 5.2 amp draw
0.7 ohms = 6 amp draw
0.6 ohms = 7 amp draw
0.5 ohms = 8.4 amp draw
0.4 ohms = 10.5 amp draw
0.3 ohms = 14.0 amp draw
0.2 ohms = 21.0 amp draw
0.1 ohms = 42.0 amp draw
0.0 ohms = dead short = battery goes into thermal runaway

Two Samsung 25R running in parallel (side by side) will provide 40 amps continuous discharge rate, but only 20 amps continuous if running in series (end-to-end). However, in regulated mods like the iStick-100 it is the amp limit of the processor chip which determines what ohm coil it will fire. This is where mechs and regulated mods differ with super sub ohm coils.

I don't know the amp limit for the iStick-100's processor chip. If the chip decides the build is too low in Ohms, it should show an error of "atomizer too Lo". A regulated device that puts out an advertised 100 watts should use the highest amp battery available, which are the Sony VTC4 2100mah 30 amp or LG 18650HB6 1500mah 30A CDR. (Note that the LG only has 1500 mah, while the Sony has 2100 mah.)

  • "If using a high wattage regulated mod, use a 20 - 30 amp CDR IMR battery, which ever your mod's manufacturer recommends. The processor's amp limit determines the amp requirement in this application, not the atomizer resistance:
75W or higher, we recommend the Sony VTC4 2100 mah 30 amp CDR.​

40W-75W =
LG 18650HG2 3000mah 20Amp CDR
Samsung 18650-25R, 2500 mah 20 amp CDR (green wrap if you can, blue wrap is just fine)
LG 18650HE2 2500 mah 20 Amp CDR
Sony 18650VTC5 2600mAh 30Amp CDR (* tested as only a 20 amp CDR)
AW 18650 3000 mah 20 amp CDR​

Under 40W =
LG 18650HG2 3000mah 20Amp CDR
Samsung INR18650-30Q 3000mah 15Amp CDR
AW 18650 3000mah 20 Amp CDR"​
 
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sacullen

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Besides, the batteries are in series in order to get the voltage needed to produce upwards of 100 watts. You still only have 20 amps, not the 40 you would have if they were parallel. Plus, you really don't want to be running your batteries at their max discharge rate all the time. You don't leave yourself any margin for error or safety.

The Sig's batteries are in series, too.
 

Baditude

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Besides, the batteries are in series in order to get the voltage needed to produce upwards of 100 watts. You still only have 20 amps, not the 40 you would have if they were parallel. Plus, you really don't want to be running your batteries at their max discharge rate all the time. You don't leave yourself any margin for error or safety.

The Sig's batteries are in series, too.
The iStick-100's two batteries are wired in parallel (side by side).
Parallel.jpg
Series.jpg


istick-100-w-d-eleaf-ismoka.jpg

The Segelei-150 is also wired in parallel.

sig150w-open.jpg


Someone correct me if I'm wrong.
 
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philoshop

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Even with a pair of batteries the setup is only as good as the weakest battery.
If one ends up not pulling its share of the load, the other will be tasked with taking up the slack, whether in series or parallel.
Multi-battery mods require even more care in cell selection and treatment, IMHO.
 
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beckdg

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Assuming your batteries are at the same charge state (4 volts for an easy example), the same power output (wattage) will result in the same median pull from the batteries in the configuration.

Given both batteries at 4 volts.
With 160 watts for your load.

Series battery configuration will see 20 amps on the entire circuit at 8 volts.

20 amps will flow directly through the entire circuit resulting in a pull of 20 amps per batt...

Parallel battery configuration will see 40 amps on the circuit at 4 volts.

20 amps will flow from each batt resulting in a 40 amp circuit to make your total 160 watts resulting in a pull of 20 amps per batt...

2 batts is 2 batts when you choose the power via buttons or dials.

There are details where the configurations make different results, but on the broader spectrum, the general idea is the results are the same when the power is the same and the cell count is the same.

Tapatyped
 
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beckdg

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Though, I don't follow the tech closely to know if any company has tried this, there's no way I'd trust a series mod with an on board charger.

...unless I knew it would balance, somewhat accurately during charging.

A parallel mod will have the batteries connected in a way that the charge states will be at least close every time they're charged.

Tapatyped
 

sacullen

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The iStick-100's two batteries are wired in parallel (side by side).
Parallel.jpg
Series.jpg


istick-100-w-d-eleaf-ismoka.jpg

The Segelei-150 is also wired in parallel.

sig150w-open.jpg


Someone correct me if I'm wrong.
The Sig is absolutely, positively, 100% wired in series. I made an assumption that because the batteries are installed with opposite polarity and its specs indicate a 10v max output that the 100w was series as well. Some googling shows at it's actually in parallel. That's a heck of a boost it can do.
 

Mike 586

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I'd have absolutely zero issues re-charging 18650s in Sigeleis, Innokin, most DNA based mods, etc. basically the stuff using good charging circuits.

I wouldn't trust the on-board chargers of anything Eleaf, Pioneer4you and the rest of the budget class mods out there. An awful lot of corners gotta be cut to turn a healthy profit at the price points those products put themselves at.
 
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