Best bang for the buck batteries 2021?

Oh right on and therefore mine’s made in Japan too. :slight_smile: I get that warm cosy feeling when I have items that are “Made In Japan”. Mind you there are China companies that made good items and have great quality control also. Just that I’m not too keen in using Chinese brand batteries. :frowning:

Yes of course, but 18650 store has them at same price, there is no reason to buy Chinese version……And I think most 30Qs are made in China nowadays.

I think CATL is the best battery manufacturer in China but never see they have consumer cells on sale. I don’t trust Lishen and DLG (Sofirn rewrap) due to their bad reputation years ago. Also Mooch recently tested some Chinese cells and results were not good at all.

…yes…i know…I provided the links. I’m questioning that these two cells were made where the websites say. You realize the color is just a wrap that can be changed, right? I think it’s time for a retest of these two seemingly identical cells.

Well the 21700s appear to be identified here: Test/review of Sofirn 21700 5000mAh (Black)

Not only the wrap, the steel cylinder under the wrap is also quite different, they are definitely not the same cells

No need, even my old TrustFire cells did not explode.

The maximum current draw is 6.8A for SC31 pro and 4.4A for FC11. The Sofirn cell is DLG NCM18650-300 with 6.4A CDR

Sofirn 21700 5000mAh is Lishen LR2170SD, it has the unique bottom vent

Maximum current draw in turbo mode will only last 30 second or so but CDR is continuous rating. I don’t remember whether SC31 can draw 10A in turbo if you use a 30Q but 6.8A was from zeroair’s testing using sofirn cell. It may limited it current draw/lumen.

Yea the second post in that thread states the same.

TrustFire may be the cheapest, but it’s also the worst. So I would call it lowest bang for your buck.

A quality battery is $5. Why would you want to spend less than that?

Many years ago, TrustFire "flames" were a very good choice.

Of course, things are different now.

Many years ago HKJ recommended TrustFire if I remember correctly, and I even got fake TrustFire cells……

Take a look at this, it is not the “Flame” version though……
https://www.reddit.com/r/electronic_cigarette/comments/47e2ci/found_this_fake_18650_picture_elsewhere_on_reddit/

thanks for all the posted information.
i have had this question as well.
please continue.

Based on the two quoted posts below, I got some of these 21700 Cells. Very happy with these. $11.99 for 3 cells & FREE Shipping.
Shipping is fast too.

21700 lithium ion Battery Cell 18.5 Wh 5000 mAh 3.75v Model 3 2170

https://www.techdirectclub.com/2170-lithium-ion-battery-18-5-wh-5000-mah-3-75v-model-3-2170-cells-lot-of-3/
……

Based on the two quoted posts below, I got some of these 21700 Cells. Very happy with these. $11.99 for 3 cells & FREE Shipping.
Shipping is fast too.

21700 lithium ion Battery Cell 18.5 Wh 5000 mAh 3.75v Model 3 2170

https://www.techdirectclub.com/2170-lithium-ion-battery-18-5-wh-5000-mah-3-75v-model-3-2170-cells-lot-of-3/
……

In China, I have access to pretty much every battery. Here are some good deals that I found:

1 USD = 6.44 CNY

High capacity 18650: Samsung 35E or 32E (the 32E has similar capacity at 10A) for 12 CNY
High drain 18650: Samsung 30Q or 30T for 17 CNY
Budget 18650: BAK H18650CIL (Rated for 2400 but I measured at 2700+) for 5 CNY

High capacity 21700: LG M50T (5000 mAh rated) for 9 CNY. The 21700 batteries always seem to have lower than rated capacity unlike 26650 batteries which have higher than rated capacity.
High drain 21700: Lishen LR2170LA (45A rated) for 10 CNY which is an astounding deal. This cell is similar to the Samsung 40T.

High capacity and drain 26650: Power Long Battery (朗动力) 5000 mAh with 20A continuous discharge for 20 CNY. I measured capacity at 5300+ mAh.
Budget 26650: Sinowatt 5000 mAh for 9 CNY

I fail to see any bottom vent:

Mooch’s testing on Lishen LR2170SF, different cell but has the same bottom vent. The only Lishen cell does not have bottom vent is LR2170LA

These use to be the Ones to get :smiley: :smiley: