Help me make a list of batteries for a UK store to sell - we'll get a 10% discount for BLF members

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HydrAxx
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adam7027 wrote:

I would like to suggest another ShockLi battery (original battery model, which is rewrapped by them – is unknown):
21700 4550mAh (closer to 4000mAh during tests)

It can be regarded as similar to the LR2170SA (which is mostly known in Liitokala rewrap), but it has better discharge curve for the first half of the discharge, and runs noticeably cooler (15A discharge, at 1.5Ah, temp is 16°C above environment).

For reference LR2170SA has a bit worse discharge performance, and gets hot much faster (15A discharge, at 1.5Ah, temp above environment is ~28°C).

Tests: ShockLi 21700 4550mAh + Liitokala 21700 4000mAh (LR2170SA)

I think, this ShockLi battery could be a good inexpensive one, if you can stock it.


 


EDIT


 


Forgot to mention, that ShockLi 14500 660mAh exists in button top version as well, and that could be also desirable.

The Shockli 21700 4550mAh 22A / 30A is a rewrap of the new Lishen cell: LS LR2170SF, an upgraded version of the Lishen LS LR2170SA you mentioned earlier (the LitoKala rewrap: Lii-40A). This new cell does not do 4550mAh as Shockli indicates but 4400mAh according to Lishen and has a continuous discharge rate of 5C, which explains the continuous 22A write on the rewrap by Shockli because 4.4 (Ah) x 5 (.C) = 22 (A). I put a picture of the new Lishen cell with its original Wrap.

Can a single flapping of a butterfly's wings trigger a tornado at the other end of the world?

adam7027
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HydrAxx wrote:
adam7027 wrote:

I would like to suggest another ShockLi battery (original battery model, which is rewrapped by them - is unknown):
21700 4550mAh (closer to 4000mAh during tests)...

The Shockli 21700 4550mAh 22A / 30A is a rewrap of the new Lishen cell: LS LR2170SF, an upgraded version of the Lishen LS LR2170SA you mentioned earlier (the LitoKala rewrap: Lii-40A). This new cell does not do 4550mAh as Shockli indicates but 4400mAh according to Lishen and has a continuous discharge rate of 5C, which explains the continuous 22A write on the rewrap by Shockli because 4.4 (Ah) x 5 (.C) = 22 (A). I put a picture of the new Lishen cell with its original Wrap.

Thank you, good to know Smile

adam7027
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Hello 18650UK,

I just looked up the product page on 18650.uk for Keeppower IMR26650 6000mAh unprotected button top (UH2660, white text on black label).

Could you please correct a few mistakes in the product description?
- battery has raised positive connection, but it is unprotected
- weight is definitely not 81g, it is 98g
- physical size is not 26.1×60.3mm (that would be very short) – it is 26.8×66.7mm
(source of data)

18650UK
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You are very right, thank you

Ive corrected the information Smile

Ben

cr123
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I will buy rechargeable batteries in a Polish store. They have an English version but there are fewer products https://batteries.cr123.pl/

on the Polish have more products
https://akumulatorki.cr123.pl/

I bought 26650 and 18650 with USB.

hodor
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I’m looking for a good 26650 such as the Shockli 5500mAh. Would be great if it was stocked in the UK.

The KeepPower mentioned earlier is out of stock and no longer showing on your website.

18650UK
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mortuus wrote:
could you be able take these cells in ?

Keeppower 26650 5200mAh (protected) – 12A

I have them listed, but getting any 26650 out of Keeppower in the last 12 months has been very difficult. They’re listed here – https://18650.uk/product/keepower-26650-5200mah/

The issue i think is with the bare cell. Because these Chinese re-wrapping businesses are relying on OEM cells and the OEM (Samsung, Sony, LG, etc) have firmly had their heads in the 21700 form factor for the last two years, there is next to no (or none at all) development in the 26650 size and with even less production, getting the bare cell to produce this product is becoming practically impossible. What normally happens once supply of the “good cells” runs out is they switch to using unbranded Chinese equivalents which are normally of reasonable quality, but not quite the same. They also often neglect to tell anyone/update the wrap with new performance figures/release a new datasheet for them.

If you join the waitlist, you’ll get an auto-email the moment more stock arrives and is added Smile

fluke
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Vapecell 14500 1000mah 10A any chance of getting them?

18650UK
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fluke wrote:

Vapecell 14500 1000mah 10A any chance of getting them?

Certainly not impossible. I would like to get some to test. 10A from a 14500 seems quite a stretch. We already stock the Sanyo UR14500 here – https://18650.uk/product/sanyo-ur14500p/ The capacity and discharge ratings however, are well below what Vapcell are offering.

Ill grab a pair from a supplier and give it a test, and post the results. Ill let BLF decide whether the findings make is useful or not?

Edit – Misread the stats on the cell. 3A, not 10A. This makes it possible they might already be using the UR14500P under the wrap, with a slightly trumped up capacity. Ill grab some regardless and do some back to back comparisons.

fluke
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Thank you. 

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