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LG HB4, HB6, HD2

NickyGiaccone

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So I've got myself a pair each of the new LG HB4, HB6, and HD2 batteries. The HB4 is hard to find but it's over the better cell. HD2 batteries aren't that great and don't compare to VTC4s. 30amps is a must.
 

martnargh

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I got some hb6s... to me vtc4 is still the best liion 18650 around.

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suprtrkr

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I like my VTC4s, but Sony annoys me. I am considering switching to the HD2C.
 

Mikhail Naumov

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There are no real 30 amp continuous 18650's. Not even the LG HB6. Bench tests have rated the HB6 at the highest at around 27 amps I believe, the Sony's are around 24. The standard is 20-25A, the rating you often see is burst.

As far as which battery 18650 wise is king of high amps, it's the HB6. The Sony's are nice, but the VTC3 would be best for high amps because it has the least internal resistance which leads to less sag = less amps being drawn off of it because it's not working as hard in regulated mods to hit a given wattage unless it's being run through a buck circuit.

The more MaH (capacity) a cell has, the more internal resistance, the more IR, the more sag, the more sag, the more amps get drawn off batteries in boost circuit chips because it's sagging to a lower voltage than it's outputting. Boost ups the voltage by drawing more current off the cell, buck does the opposite.

LG makes some damned good batteries, but Sony's are hit and miss because there's more fakes than real ones out there right now. I'm a Lipo man myself, and not just because I'm an engineer working for a Lipo company. I adore them, but 18650's can still take a damned good beating, just don't push them too hard or you'll end up on the news with E CIGS EXPLODE, BIG TOBACCO WAS RIGHT! as a caption. You're gonna have a bad time if that happens, lol.
 

martnargh

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There are no real 30 amp continuous 18650's. Not even the LG HB6. Bench tests have rated the HB6 at the highest at around 27 amps I believe, the Sony's are around 24. The standard is 20-25A, the rating you often see is burst.

As far as which battery 18650 wise is king of high amps, it's the HB6. The Sony's are nice, but the VTC3 would be best for high amps because it has the least internal resistance which leads to less sag = less amps being drawn off of it because it's not working as hard in regulated mods to hit a given wattage unless it's being run through a buck circuit.

The more MaH (capacity) a cell has, the more internal resistance, the more IR, the more sag, the more sag, the more amps get drawn off batteries in boost circuit chips because it's sagging to a lower voltage than it's outputting. Boost ups the voltage by drawing more current off the cell, buck does the opposite.

LG makes some damned good batteries, but Sony's are hit and miss because there's more fakes than real ones out there right now. I'm a Lipo man myself, and not just because I'm an engineer working for a Lipo company. I adore them, but 18650's can still take a damned good beating, just don't push them too hard or you'll end up on the news with E CIGS EXPLODE, BIG TOBACCO WAS RIGHT! as a caption. You're gonna have a bad time if that happens, lol.
You should read mooch's bench tests results reguarding this subject....

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Mikhail Naumov

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I've conducted my own, and seen several others. Mooch's tests are some of the best and he proves it as well, I'm just being literal my man. There are no true 30A continuous 18650 or 26650 batteries. I did this with engineering equipment in a controlled setting with all sorts of variables. Though I know Mooch probably has way better gear than me, he's OG as fuck and I'm a youngblood engineer. You also have to remember as cells discharge internal resistance rises. Mooch's article is a damned good read and if you pay attention he addresses what I'm talking about. A rating should be for a battery overall, not for the first five minutes of use. 30A is close, 27A is closer. It's 3 amps off, I'm just being literal.

His article for anyone who wants a good read:


http://vaping360.com/there-are-no-18650-batteries-rated-over-30a-yet/

 
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Mikhail Naumov

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Mooch is a cool dude though (and one of my personal inspirations of choosing the career I did, I've followed him for a while), great to have a conversation with if you like electronics. Nothing in electronics is accurate dead on. A 3,000mah 20A battery will be around 2,920mah and 18A. They round up for many reasons, usually marketing. Taking batteries to the bench, none can truly provide 30A continuous for any amount of time. A LOT COME CLOSE, don't get me wrong, Sony and HB6 batteries come VERY close, with HB6 and VTC3 18650's capping out at around 26-28 amps, but 30A literally, no. I'm a literal dude. Also every cell varies, even same ones by same brands. One or two MAY be able to hold a 30A cont charge for a little while, but none I've found or seen tested can hit the literal 30A mark. But they can get pretty close.
 
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martnargh

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Would you consider vaping to be a continuous workload for the cells, pulsed? Somewhere in between?

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Mikhail Naumov

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This varies greatly on how you vape. If you're vaping every few seconds taking hard hits draining high amps, you're working it in the continuous range and need to watch out. If you're just cruising on 2-4 second hits every 30-60 seconds or so, you're in the pulse range and you can hit it with harder amps with much less worry. Just be careful, as no two cells even under the same brand are the same. One amp can literally be the difference between a hot battery and a vented battery.
 

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