True Amp Rating of AW 18490s?

[cantstopwontstop]

Thanks guys!!! Just bought the AW 18490 and the new purple Efest 18650 35 amp battery! Now I can retire my old EH 18650's, they have probably 200 - 300 charges each at least (probably closer to 400 lol) and I can tell they're starting to wear out simply by how long they take to charge.

 

[Niko49]

Does anyone know how the 18490's manage this. With 18350's having a 6amp rating, and 18650's having a 10 amp rating, it would stand to reason the 18490's would be somewhere in between, but they're listed with a 15C rating, so 1100 mah x 15C / 1000 = 16.5 amps, it seems almost too good to be true...

The 18490 is a newer cell. The 18650s that you get today where probably all mass produced at the same time using the same technology. I would be surprised if AW didn't release a new 18650 this year with a 20C rate.

 

[steel bender]

Thanks guys!!! Just bought the AW 18490 and the new purple Efest 18650 35 amp battery! Now I can retire my old EH 18650's, they have probably 200 - 300 charges each at least (probably closer to 400 lol) and I can tell they're starting to wear out simply by how long they take to charge.

Talking about too good to be true, those purple efests look like magic in a tube.

 

[Kemosabe]

I've always trusted the 16.5A spec for the aw imr 18490.

Speaking of amp draw, There is a 50A battery on the market. Only thing is that its a 26650 (Sony). It looks like the 30 amp 18650s. I have no need for that though. 0.5 ohm is plenty low for me, I couldn't imagine going sub 0.1 ohm.

 

[muzichead]

EFest is releasing the new purple line in 18350 10.5A very soon also. Discount China Wholesale 2014 Newest Efest IMR 18350 700mah 3.7V 10.5ALimn batteries purple with flat top [2232]- US$3.50 - bestvaping.net

 

[Kemosabe]

EFest is releasing the new purple line in 18350 10.5A very soon also. Discount China Wholesale 2014 Newest Efest IMR 18350 700mah 3.7V 10.5ALimn batteries purple with flat top [2232]- US$3.50 - bestvaping.net

That is awesome news! I'd love a 10.5A 18350. I've been doing fine with my .9 ohm coils on my aw18350s but dipping a few notches lower will rock.

 

[CloudZ]

I would like to know how C-rating is determined. Is it a pure estimate? Is it a decent estimate based on non-destructive testing? Is it a real specification determined through substantial torture testing of a large sample size?

 

[muzichead]

From Wikipedia... Battery (electricity) - Wikipedia, the free encyclopedia
C rate
The C-rate is the multiple of the current over the current that a battery can sustain for one hour.[28] A rate of 1 C means that an entire 1.6Ah battery would be discharged in one hour at a discharge current of 1.6 A. A 2C rate would mean a discharge current of 3.2 A, over one half-hour.

 

[CloudZ]

From Wikipedia... Battery (electricity) - Wikipedia, the free encyclopedia
C rate
The C-rate is the multiple of the current over the current that a battery can sustain for one hour.[28] A rate of 1 C means that an entire 1.6Ah battery would be discharged in one hour at a discharge current of 1.6 A. A 2C rate would mean a discharge current of 3.2 A, over one half-hour.

Not sure if you were responding to my post, but this blurb from wikipedia describes a capacity discharge rate rather than a specification. I was wondering how the maximum rate is determined.

 

[cantstopwontstop]

EFest is releasing the new purple line in 18350 10.5A very soon also. Discount China Wholesale 2014 Newest Efest IMR 18350 700mah 3.7V 10.5ALimn batteries purple with flat top [2232]- US$3.50 - bestvaping.net

This makes me very happy, hopefully they'll be at vendors soon rather than wholesale!

 

[gofastman]

Thanks guys!!! Just bought the AW 18490 and the new purple Efest 18650 35 amp battery! Now I can retire my old EH 18650's, they have probably 200 - 300 charges each at least (probably closer to 400 lol) and I can tell they're starting to wear out simply by how long they take to charge.

Although I mostly trust RTD VAPOR to sell good stuff, those new purple Efest batteries definitely look too good to be true. Personally, I wouldn't run them above 20A, at least until they are on the market for a while and get tested. I'll stick with my AW 1600s for now and get some Sony VTC4 in the future for my high amp needs

 

[cantstopwontstop]

Although I mostly trust RTD VAPOR to sell good stuff, those new purple Efest batteries definitely look too good to be true. Personally, I wouldn't run them above 20A, at least until they are on the market for a while and get tested. I'll stick with my AW 1600s for now and get some Sony VTC4 in the future for my high amp needs

lol. Don't worry I'm not gonna blow myself up, I honestly don't run anything under .6-.7 (normally) though I prefer batteries with higher amp ratings just because they make me feel safer. I also feel that they last longer, and generally seem to work better than lower amp batteries. Right not I use my sony VTC4's for anything under .9 ohms and I can easily get a full day out of them on a .6 ohm coil. They charge faster than any of my other batteries (@ a half amp) as well.

 

[gofastman]

lol. Don't worry I'm not gonna blow myself up, I honestly don't run anything under .6-.7 (normally) though I prefer batteries with higher amp ratings just because they make me feel safer. I also feel that they last longer, and generally seem to work better than lower amp batteries. Right not I use my sony VTC4's for anything under .9 ohms and I can easily get a full day out of them on a .6 ohm coil. They charge faster than any of my other batteries (@ a half amp) as well.

Sounds like you have some common sense, that's good. I'd just hate to see what happens when a 3500mah battery kersplodes near someone's face because they wanted to find out how a single wrap twisted 26ga coil worked, lol

 

[stylezuk]

For 18350 the xtar IMR 850mah are 10A.

 

[BobC]

I wouldn't give my worst enemy an Xtar battery, true garbage

 

[BobC]

I've always trusted the 16.5A spec for the aw imr 18490.

Speaking of amp draw, There is a 50A battery on the market. Only thing is that its a 26650 (Sony). It looks like the 30 amp 18650s. I have no need for that though. 0.5 ohm is plenty low for me, I couldn't imagine going sub 0.1 ohm.

AW is way behind the technology curve now, I wouldn't trust efest, but LG @30 & Sony @30 are both excellent and totally out pace AW for high drain, and AW's 1600 mah capacity is paltry compared to either of the above

 

[stylezuk]

I wouldn't give my worst enemy an Xtar battery, true garbage

So there batteries don't hold weight but there chargers do? Just wondering why?

AW is way behind the technology curve now, I wouldn't trust efest, but LG @30 & Sony @30 are both excellent and totally out pace AW for high drain, and AW's 1600 mah capacity is paltry compared to either of the above

Yeah i have VTC4's & AW 1600 and the 1600 drain is awful even the INR 22A seem better batteries under load.

 

[WattWick]

Lots of options in the larger sizes. I'm keeping my fingers crossed for Efest to pull through on their purple 18350s. And hopefully someone will come up with some better 18490/500s.

 

[stylezuk]

Lots of options in the larger sizes. I'm keeping my fingers crossed for Efest to pull through on their purple 18350s. And hopefully someone will come up with some better 18490/500s.

They exist just looks like Efset haven't kept up with supply and sold out most places as after the 2500 35A.

 

[Raynman]

I just wonder why RTD sells Efest 35 amp when they are rebranded LGs.