AW IMR 2000mAh v Efest IMR 2000mAh v Panasonic CGR18650CH

I was interested to see how AW IMR 2000mAh compared to Panasonic CGR18650Ch and the new 2000 IMR from Efest.

At 1A discharge the Panasonic wins on capacity, with the Efest maintaining a higher voltage.

Same story at 5A with AW lagging well behind.

What about some IMR-worthy currents (10A)?

On both 1 amp draw and 5amp draw, the efest cell contained the most mah at 3.5v, while the panasonic had the most total mah.

Any idea how these cells compare to the LiMnNi and LiNiMnCo cells that batteryspace carries?:

I’m not sure why their max discharge current is rated so low on the batteryspace pages (1.5C for the LiNiMnCo and 1C for the LiMnNi)

Also, what about the BestInOne IMR cells?

I’m not sure why the discharge and charge currents are so low for the LG.

I have discharged these at 5A continuous current, and will make a graph shortly. The Efest get quite warm, but the AW and Panasonic stay quite cool.

Check here for temperature graphs at 10A constant current for AW IMR 1600mAh, Efesr 1500mAh, Samsung INR18650-15Q, Sanyo UR18650W2 and Panasonic CGR18650CH : AW IMR 1600mAh v Efest IMR 1500mAh v Sanyo UR18650W2

The LG are pretty affordable and claim pretty high capacity for IMR. I’d be interested to know how cool they stay compared to the AW and Panasonic at 5A and how their capacity compares at that discharge rate (I guess longevity is a gamble when you operate over spec). If they’re about the same as the other two, I might buy a couple of those the next time someone asks me for a complete kit on short notice.

I might try some and see how they compare.

Sorry about the photos, now updated

This was one of the first they produced and they sent it before they had labels ready. The internal resistance is quite high for an IMR and it gets quite hot at 5A . I don’t know if they offer them for sale yet.

I got all of my Efest batteries directly from Efest.
The 1500mAh are almost identical to AW 1600mAh and Samsung INR18650-15Q in performance. Even at 10A they stay cool. You can see the review here: AW IMR 1600mAh v Efest IMR 1500mAh v Sanyo UR18650W2

I’m always suspicious when I see the same battery in different wrappers, although I doubt that anyone would be selling fake Efest.

Thank you for all of you focus on efest.

Thank you very much Jim for all of your kindly efforts.

Efest batteries are always keep improve the quality. If you guys have any doubt or suggestions for our efest batteries, please just feel free to contacts us.

Don’t eat too much Moon Cake and enjoy the holiday.

Thank you Jim. Wish you and all of the members here have a nice weekend. Well, Moon cake made of flour, yolk, fruit and so on, after you eat one or two pcs, then you can’t eat any other food already. :smiley:

Any customer visited us in China at this time, we’ll send a box moon cake for gift. Yesterday, we just met few customer in China and sent few moon cake to them. But unfortunately, the food can’t be ship to other cuntry, otherwise we’ll send to many of our customer, it a little bit sad.

Im reading this graphs and Efest is to the worst cell, having biggest voltage sag at higher voltages at least…

And so, all these 2000mAh IMRs actually have 1500mAh?

SO whats the difference with 1500mah IMRs than??

I wanted to buy some Efest from here http://www.easy-eliquid.com/search.php?search_query=IMR
but now Im doubtful.

Im searching for minimum voltage sag at higher voltages (and lowest price :slight_smile: )

It looks like the photo is of 2000mAh batteries and the curves are for 1500/1600mAh batteries.

The 2000mAh AW battery is 2000mAh, I have not tested the Efest yet, but will be testing nearly the full Efest range during the next two months.

You can find them and compare them to AW batteries in my comparator, when they are tested.

Thanx

From that website its really a deal (I to lazy right now to put it on deals)

Its US website it seems, but you can get 4 flat top 2000mAh IMR Efest 18650s for 22$

Who can beat that???

It almost seems like a pricing mistake…

It would be great to have discharge curves for efest IMR 2000mAh

I will add curves for both Efest IMR15000 and 2000 within the next two months. I cannot say exactly when, because it depends on what sequence I do the Efest batteries in (Each battery takes nearly a week to test).

You might want to check out torchys website: