Sony VTC4 vs LG HE2 vs LG HE4 vs EFest 35A 2100mah

[CLOUDKICKER]

hello everyone. just wondering which one is the best for mech mods/ cloud chasing? what are the TRUE max continuous discharge rates for all three batteries. i heard the efest 35A are actually not 35A cause even the Sony VTC batteries arent that good. I heard the Efest 35A is the same as the VTC4. <- are all the specs the same? which one is the best for going down to 0.3-0.4ohms?

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[Technonut]

Moved from APV discussion to Batteries and Chargers forum...

 

[thomas l]

personally i would say VTC4 for a mech mod .

 

[Slurp812]

As far as I know they are all 20 amp max discharge besides the vtc4, which is 30 amp. Also at 0.2 ohms, you are OK with a 20 amp battery. Below that you need the VTC4.

 

[Completely Average]

As far as I know they are all 20 amp max discharge besides the vtc4, which is 30 amp. Also at 0.2 ohms, you are OK with a 20 amp battery. Below that you need the VTC4.

I wouldn't run a .2ohm coil on a 20A battery. That's a 21A draw on a full 4.2V battery charge with absolutely no margin for error.

.3ohms would be the lowest I would go with a 20A battery. That gives at least a 25% margin of error for battery discharge. Any lower than that and I would recommend a 30A battery like the VTC4 or Orbtronic SX30.

 

[Froth]

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Oh damn, better not hold back now! -_-

The Samsung 25R out performs every battery you mentioned(has a better discharge curve) I own over a dozen of them for a reason...

 

[KenD]

Oh damn, better not hold back now! -_-

The Samsung 25R out performs every battery you mentioned(has a better discharge curve) I own over a dozen of them for a reason...

The LG he4 tests better than the Samsung 25r.

 

[Froth]

The LG he4 tests better than the Samsung 25r.

Since when?
LG HE4 - http://www.candlepowerforums.com/vb...-Test-Review-of-LG-18650-HE4-2500mAh-(Yellow)

Samsung 25R - http://lygte-info.dk/review/batteries2012/Samsung INR18650-25R 2500mAh (Green) UK.html

Pretty clear to me from those that the 25R performs better. From the same tester, so it's a little easier to compare accurately.

 

[KenD]

Since when?
LG HE4 - http://www.candlepowerforums.com/vb...-Test-Review-of-LG-18650-HE4-2500mAh-(Yellow)

Samsung 25R - http://lygte-info.dk/review/batteries2012/Samsung INR18650-25R 2500mAh (Green) UK.html

Pretty clear to me from those that the 25R performs better. From the same tester, so it's a little easier to compare accurately.

Without a direct side by side comparison I can't see much of a difference in the discharge curves. The difference you're pointing out is the measured capacity at different amp draws, right? They drop pretty much the same amount at the different loads. The 25r starts out with a higher capacity, but that could be only the difference between the individual batteries.

I based my statement on a test I saw. Can't find it now so I guess I might have dreamt it up. However, the LG he2 and Samsung 25r are very close, and the he4 beats out the he2.

 

[Froth]

Without a direct side by side comparison I can't see much of a difference in the discharge curves. The difference you're pointing out is the measured capacity at different amp draws, right? They drop pretty much the same amount at the different loads. The 25r starts out with a higher capacity, but that could be only the difference between the individual batteries.

I based my statement on a test I saw. Can't find it now so I guess I might have dreamt it up. However, the LG he2 and Samsung 25r are very close, and the he4 beats out the he2.

I'm basing it off real world usage, I've got a lot of batteries and while yes the HE4 does perform better than the HE2 the 25R out performs them both in my experiences, I consistently get more use down to a lower voltage with less drop from my 25R's, and they don't ever seem to get as hot as any of my other batteries.

 

[KenD]

I'm basing it off real world usage, I've got a lot of batteries and while yes the HE4 does perform better than the HE2 the 25R out performs them both in my experiences, I consistently get more use down to a lower voltage with less drop from my 25R's, and they don't ever seem to get as hot as any of my other batteries.

I haven't put my he4's to use yet, but I prefer my he2's to my 25r's. In my use the amp draw rarely goes over 10. That just goes to show that subjective experiences differ.

 

[VapingTurtle]

Just for discussion's sake:
Sony's official response to the availability of VTC4 and VTC5 18650s

 

[VapingTurtle]

Remember when comparing discharge curves and advertised mAh that the they are generally listed down to cut-off values of 2.5 volts or whatever the manufacturer's specs allow. Fine for flashlights, but we vapers don't drain batteries below about 3.3 volts for regulated mods and much higher for mechs. The advertised capacity means squat to us. You must compare discharge curves down to the target voltage.

For examples, on the curves posted above for the he4 and 25r, we can see that the curves for a 3A draw cross 3.7 volts at about 750mAh for the he4, and about 800mAh for the 25r.

Analyze discharge curves at the current and voltage that you desire. Forget about advertised 1600mAh, 2100mAh, 2500mAh, etc.

Just sayin'.

 

[Monotremata]

I've got pairs of HE2s, HE4s, and 25Rs and they're pretty much the same to me. I don't get any longer runtime on the Sammy's than I do with either LG. If it weren't for the colored wrappers they would be the same battery to me..

 

[Froth]

I've got pairs of HE2s, HE4s, and 25Rs and they're pretty much the same to me. I don't get any longer runtime on the Sammy's than I do with either LG. If it weren't for the colored wrappers they would be the same battery to me..

As pointed out by KenD, since we all most likely are vaping at differing wattage with different setups there will be obvious differences in run time between users, me personally I'm asking all of my batteries to pretty much give 150%, four of my every day builds are 0.12 ohms on single 18650 mechanical mods. For that sort of usage(Pushing the pulse limits) the Samsung 25R pretty much obliterates the LG HE2, very very noticeable difference in run time at 30A+. Not recommended to anyone else obviously, but it's how I vape so I'll share my experiences so long as I don't catch too much flack for pushing so far past the CDR of the batteries.

 

[VapingTurtle]

Here's some flack for pushing so far past the CDR of the batteries, Froth. Don't try this at home, kids! It's seriously dangerous. You are way better off just eating more Chipotle.

 

[Monotremata]

Here's some flack for pushing so far past the CDR of the batteries, Froth. Don't try this at home, kids! It's seriously dangerous. You are way better off just eating more Chipotle.

Man I really want one of their steak burritos now!

 

[Visus]

Since when?
LG HE4 - Test/Review of LG 18650 HE4 2500mAh (Yellow)

Samsung 25R - Test of Samsung INR18650-25R 2500mAh (Green)

Pretty clear to me from those that the 25R performs better. From the same tester, so it's a little easier to compare accurately.

Ya didn't add his disclaimer of why the mah is lower on the HE4's..
The LG is clearly a better performing battery as per the charts.. It performs better in the last oomph sweet spot on reg mods 3.5v--3.2v.. The LG is almost .05v higher discharge and thats huge... At 30 amps it runs away from the samsung huge-- it clearly is the better batt..

Battery test-review 18650 comparator

This is one of LG's high current and high capacity cell.
This cell can be discharged down to 2.5 volt, because I stop at 2.8 volt I will not get the full capacity.

They do perform better in different areas than the HE4's and the HE4's perform better in the curve where you want it to that few extra oomph's at 3.5v down to 3.2v..

 

[KenD]

Ya didn't add his disclaimer of why the mah is lower on the HE4's..
The LG is clearly a better performing battery as per the charts.. It performs better in the last oomph sweet spot on reg mods 3.5v--3.2v.. The LG is almost .05v higher discharge and thats huge... At 30 amps it runs away from the samsung huge-- it clearly is the better batt..

Battery test-review 18650 comparator

They do perform better in different areas than the HE4's and the HE4's perform better in the curve where you want it to that few extra oomph's at 3.5v down to 3.2v..

That was the test I was looking for.

 

[Froth]

Ya didn't add his disclaimer of why the mah is lower on the HE4's..
The LG is clearly a better performing battery as per the charts.. It performs better in the last oomph sweet spot on reg mods 3.5v--3.2v.. The LG is almost .05v higher discharge and thats huge... At 30 amps it runs away from the samsung huge-- it clearly is the better batt..

Battery test-review 18650 comparator

They do perform better in different areas than the HE4's and the HE4's perform better in the curve where you want it to that few extra oomph's at 3.5v down to 3.2v..

Based off the comparison available there, the LG HE2 is shown to be better in every aspect over the HE4 which would seem to the opposite of pretty much every other test I've seen available where the HE4 beats the HE2 across the board. Those graphs for the comparison show the HE2 performing well above the HE4 at 1A all the way to 30A, strange considering the HE4 is supposed to be the better more improved battery when this comparison graph shows that there is actually no point in which the HE4 surpassed the HE2 in overall performance.

Edit: I'm so confused...all this information conflicting from differing sources. This Illumination supply test clearly shows the 25R destroying the HE2 at Pulse discharge levels, and they were pretty close to right in line at 20A which is what I expect them to test like, this is about what I experience with real world usage, my 25R's give the VTC5's I still have a real run, especially considering the price of them.