Test/review of Keeppower 18350 1200mAh UH1835P (Black) 2017

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HKJ
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Test/review of Keeppower 18350 1200mAh UH1835P (Black) 2017

Keeppower 18350 1200mAh UH1835P (Black) 2017

DSC_2344

Official specifications:


  • Nominal capacity: 1200mAh
  • Nominal voltage: 3.7V
  • Charging method: CC-CV
  • Charging voltage: 4.20V
  • Std. charging current: 500mA
  • Discharge cut-off voltage: 2.00V
  • Max. constant discharge current: 10A
  • Max. pulse discharge current: 15A
  • Size: 18.3 × 35.0mm

Keeppower%2018350%201200mAh%20UH1835P%20(Black)%202017-info

A high current and high capacity 18350 cell from Keeppower

DSC_2342DSC_2343

DSC_2345DSC_2346

DSC_2347
DSC_2348

Keeppower%2018350%201200mAh%20UH1835P%20(Black)%202017-Capacity

The batteries has good discharge curves, they tracks fairly well and capacity only drops slowly with current. 10A works fine, 15A is too much.

Keeppower%2018350%201200mAh%20UH1835P%20(Black)%202017-Temp-7.0

Keeppower%2018350%201200mAh%20UH1835P%20(Black)%202017-Temp-10.0

Keeppower%2018350%201200mAh%20UH1835P%20(Black)%202017-Temp-15.0

Keeppower%2018350%201200mAh%20UH1835P%20(Black)%202017-CapacityTimeHours

Keeppower%2018350%201200mAh%20UH1835P%20(Black)%202017-CapacityTime

Keeppower%2018350%201200mAh%20UH1835P%20(Black)%202017-Energy

Keeppower%2018350%201200mAh%20UH1835P%20(Black)%202017-PowerLoadTime

Keeppower%2018350%201200mAh%20UH1835P%20(Black)%202017-TripCurrent

Keeppower%2018350%201200mAh%20UH1835P%20(Black)%202017-Charge



Conclusion

This battery is from the new generation of smaller cell with much improved performance. This means that this battery is one of the best 18350 at the current time.



Notes and links

The batteries was supplied by Keeppower for review.

How is the test done and how to read the charts
How is a protected LiIon battery constructed
More about button top and flat top batteries
Comparison to other LiIon batteries

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

MRsDNF
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Thanks HKJ. This battery has been talked about for awhile now. Thumbs Up

 

djozz quotes, "it came with chinese lettering that is chinese to me".

                      "My man mousehole needs one too"

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

saypat
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where can one purchase these? Thanks!

djozz
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saypat wrote:
where can one purchase these? Thanks!

I fear a bit that this battery goes the same route as the Aspire 18350 (since it may be the same one), I already see several sources under restocking.
richnpc
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Persechini
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I hope this becomes available somewhere with international shipping, getting popular 18650s is already hard enough, with 18350s it’s even worse

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My collectionEmisar: D4 / D1 / D4 (broken) ― Convoy: C8 Clear / S2+ Clear / S2+ / S2+ UV / S6 ― Nitecore: Tube / Thumb / Concept 1 / HC30 / HC33 / TIP / TIP CRI / TINI ― Lumintop: Tool AAA / Tool AA / HLAAA / EDC05 ― Sofirn: SF10 / SF12 / SF12 / SF14 / SF14 / SF14 / SP10A / SP10A (gifted) ― Jaxman: E3 ― UTorch: UT01 ― Trustfire: Z2 ― Skyfire: SF-065 (trashed)

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Woohoo, 1200mah is back on sale!

djozz
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freeme wrote:

Woohoo, 1200mah is back on sale!


where?
MascaratumB
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djozz wrote:
freeme wrote:

Woohoo, 1200mah is back on sale!


where?

Protected:
https://www.aliexpress.com/item/High-Quality-2pcs-P1835C2-IMR18350-1200m...

Unprotected:
https://www.aliexpress.com/item/4PCS-LOT-Original-Keeppower-3-6V-18350-1...

Wink And some other AliExpress stores have them Wink

REVIEWS: AMUTORCH: S3 / S3 vs 219c / AM30 / AX1 / VG10 /// SOFIRN: SF14 & SP10A / SP32A / SP10B /// NITEFOX: UT20 / ES10K / K3 /// ODEPRO: KL52 / B018 /// ACEBEAM: H20 /// BLITZWOLF: BlitzWolf BW-ET1 /// DQG: AA Slim Ti /// HC-LIGHTS: SS AAA /// XTAR: PB2 Charger /// OLIGHT: M2R Warrior /// WUBEN: TO10R / E05 / T70 /// ON THE ROAD: M1 / i3 / M3 Pro /// ROVYVON: A2 & A5R / E300S / A8 /// KLARUS: XT1C 

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djozz
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…and the wink is because? Is there a group buy in the make?

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djozz wrote:
…and the wink is because? Is there a group buy in the make?

Eheh, no no – at least not that I know of! I just used the Wink because there are several stores with these 1200 (un)protected Keeppower, I keep them under sight in case I need more to replace or add to the Aspire IMR18350 1100mAh I bought when they were still produced!

And because I use a lot of smiles on my messages Facepalm

REVIEWS: AMUTORCH: S3 / S3 vs 219c / AM30 / AX1 / VG10 /// SOFIRN: SF14 & SP10A / SP32A / SP10B /// NITEFOX: UT20 / ES10K / K3 /// ODEPRO: KL52 / B018 /// ACEBEAM: H20 /// BLITZWOLF: BlitzWolf BW-ET1 /// DQG: AA Slim Ti /// HC-LIGHTS: SS AAA /// XTAR: PB2 Charger /// OLIGHT: M2R Warrior /// WUBEN: TO10R / E05 / T70 /// ON THE ROAD: M1 / i3 / M3 Pro /// ROVYVON: A2 & A5R / E300S / A8 /// KLARUS: XT1C 

Tricks: 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8  TIR Lenses: 1 / 2   Others: Biscotti 3 & 1*7135     Triple TIR & XP-G2

 MY GIVEAWAY (FW3A)

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I believe these cells are still being produced by Shen Zhen Yong Deli, it's great to see KeepPower marketing them.

 

Cheers Smile

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MascaratumB wrote:
Protected:

Unprotected:

thanks for the links and info

fwiw, protected 18350 are longer than unprotected.

For my PT-16, the unprotected work, the Protected are too long

also:
https://www.aliexpress.com/item/High-Quality-2pcs-P1835C2-IMR18350-1200m...
Can not deliver to United States”

MascaratumB
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jon_slider wrote:
MascaratumB wrote:
Protected:

Unprotected:

thanks for the links and info

fwiw, protected 18350 are longer than unprotected.

For my PT-16, the unprotected work, the Protected are too long

also:
https://www.aliexpress.com/item/High-Quality-2pcs-P1835C2-IMR18350-1200m...
Can not deliver to United States”

Thank jon_slider Wink Apart from 2 Panasonic 18650, I don’t have protected Li-Ion cells, but I am aware those are normally longer and thicker than the non protected Thumbs Up
Also, didn’t check the shipping from that store Facepalm But there are some other stores that have those and that probably ship to the US Wink

REVIEWS: AMUTORCH: S3 / S3 vs 219c / AM30 / AX1 / VG10 /// SOFIRN: SF14 & SP10A / SP32A / SP10B /// NITEFOX: UT20 / ES10K / K3 /// ODEPRO: KL52 / B018 /// ACEBEAM: H20 /// BLITZWOLF: BlitzWolf BW-ET1 /// DQG: AA Slim Ti /// HC-LIGHTS: SS AAA /// XTAR: PB2 Charger /// OLIGHT: M2R Warrior /// WUBEN: TO10R / E05 / T70 /// ON THE ROAD: M1 / i3 / M3 Pro /// ROVYVON: A2 & A5R / E300S / A8 /// KLARUS: XT1C 

Tricks: 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8  TIR Lenses: 1 / 2   Others: Biscotti 3 & 1*7135     Triple TIR & XP-G2

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moderator007
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This appears to be the same cell under the wrapper as the Aspire 18350.
I’ll stick with the Aspire for now since I can get them in the US and cheaper.
https://liionwholesale.com/collections/batteries/products/aspire-18350-b...

Thanks for the review HKJ, very much appreciated. Thumbs Up

jon_slider
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MascaratumB wrote:
I am aware those [protected] are normally longer and thicker than the non protected

surprisingly, to me, the 16340 protected and unprotected are the same length (in inches), or 0.25 mm longer for protected.
The 18350 difference is much greater (IF the linked specs are accurate)

Protected 18350:
https://www.batteryjunction.com/efest-3400-button.html
Height: 1.47” (37.36 mm)

UnProtected 18350
https://www.batteryjunction.com/efest-4084-opt.html
Height: 34.63 mm

Added length of protected 18350, 2.73 mm


Protected 16340
https://www.batteryjunction.com/efest-3540-button.html
Height: 1.33” (33.98mm)

Unprotected 16340
https://www.batteryjunction.com/efest-3277-button-700mah.html
Height: 1.34” (33.98mm)

Added length of protected 16340, 0.25 mm

Persechini
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This store is currently shipping the Keeppower UH1835P to Brazil and I imagine other countries where shipping is often unavailable, I’ve bought keeppwers from them before (currently unwrapped and returned to unprotected panny-B state)

https://www.aliexpress.com/store/918105

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Imp
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These cells are now in stock from nkon.nl, a highly reputable European vendor (no affiliation).

They do however state that the cells are 39 mm long. Which makes me wonder if they’ll fit properly in my Emisar D4?
The springs should have enough play, but I’ll hold my order until I at least get home and try to cram a measured battery with a spacer in there!

Or can anyone verify that these cells will work in a D4?

HKJ states 35 mm though, and “highly reputable” is the least of his accolades. But different batches, different specs? Fake cells? Or just misspelled on nkon?
I’ll be back with a solution to the conundrum when I have it, unless solved by another.

Of the somewhat autistic personality, who enjoys spending hours on end cross referencing numbers and data to find that perfect sweet spot and perhaps a percent of gain here or there.
But also old enough to have learned that numbers seldom tell the whole story...

HKJ
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35mm is unprotected cell and it can be seen on my photo that the cell is unprotected.
39mm is a protected probably button top cell.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

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Nice cells, allowing small lights with multiple emitters to shine, the closely resemble the Vapcell 18350 purple.
Still, the Aspire cells were even better but extremely hard to gome by……..

Tnx for testing!

Cheers,
Nico

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I have the aspire 1100, keeppower 1200, and the vapcell 1100, pretty sure the only difference is the wrapper.

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Imp wrote:

They do however state that the cells are 39 mm long. Which makes me wonder if they’ll fit properly in my Emisar D4?
The springs should have enough play, but I’ll hold my order until I at least get home and try to cram a measured battery with a spacer in there!

Or can anyone verify that these cells will work in a D4?

Hei Imp..

My
Aspire 34.91 long (fit D4)
Keeppower 35.09 long (fit D4)
Ultrafire (protected button top) 38.78 long (do NOT fit D4)

So there you go..

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I received an answer from nkon. Despite the time being post 5 pm on a Friday!

Quote:
Hi Ted,

I’ve changed the height and the width. It was not correct.

Height: 34.76
Width: 17.91

I’m sorry for the inconvenience!

Kind regards / Met vriendelijke groeten,
Mithat Kamer
NKON

So it seems like they’re fine. Although Hunter’s post makes me curious as to the measurements and batches, if nothing else…

I’ll order a bunch anyhow!

Of the somewhat autistic personality, who enjoys spending hours on end cross referencing numbers and data to find that perfect sweet spot and perhaps a percent of gain here or there.
But also old enough to have learned that numbers seldom tell the whole story...

hunter1
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Imp wrote:

So it seems like they’re fine. Although Hunter’s post makes me curious as to the measurements and batches, if nothing else…

I’ll order a bunch anyhow!

Hi Imp..

Yes it must be batch variations. Mine Keeppowers are 35.09 to 35.19 in length and 18.27 to 18.29 in width.

Otherwise, exactly the same battery as described.

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Nicolaas wrote:
Nice cells, allowing small lights with multiple emitters to shine, the closely resemble the Vapcell 18350 purple.
Still, the Aspire cells were even better but extremely hard to gome by……..

Tnx for testing!

Cheers,
Nico

The Aspire, Vapcell, and this Keeppower are same cell, all made by the same factory. Yongdeli New Energy Battery. Tony, the owner of Aspire E-Cig is part owner in the battery factory. At least he was a year ago.

Imp
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I have now received my five batteries. They are indeed about 35 mm long.
The measurement of 39 mm corresponds to Keeppowers protected 18350 cells, so the error was probably made by looking at the wrong specs, but has since been corrected.

The cells arrived in retail boxes of two, including a case for two 18350 or 18500. With a bit of cutting they can be made to fit three 18350s though! (And the fifth cell came in another of the same case, even though I ordered several other cases, one of which was used to package the two HG2s I also bought).

Furthermore, the Keeppower case for one 18650, which is apparently made with protected cells in mind, can just about fit two of these cells, with a very thin insulator! With a little bit of cutting it should be possible to fit a somewhat thicker piece of plastic in between, making it a very compact case for the job! Smile

Of the somewhat autistic personality, who enjoys spending hours on end cross referencing numbers and data to find that perfect sweet spot and perhaps a percent of gain here or there.
But also old enough to have learned that numbers seldom tell the whole story...

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Imp wrote:

Furthermore, the Keeppower case for one 18650, which is apparently made with protected cells in mind, can just about fit two of these cells, with a very thin insulator! With a little bit of cutting it should be possible to fit a somewhat thicker piece of plastic in between, making it a very compact case for the job! Smile

Thanks for the info. With regards to the insulator thing, no need for it strictly speaking unless you aim to prevent any scuff marks, ?

 

Cheers Party 

Imp
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Barkuti wrote:

Thanks for the info. With regards to the insulator thing, no need for it strictly speaking unless you aim to prevent any scuff marks, ?


 


Cheers Party 

No, I’m more after a “spacer”, or something to hold the cells in place, as the case is on the large side and they will rattle and move if there’s only one in there. Yes, “insulator” may have been a bad choice of word, but it was natural in the circumstance.

Of the somewhat autistic personality, who enjoys spending hours on end cross referencing numbers and data to find that perfect sweet spot and perhaps a percent of gain here or there.
But also old enough to have learned that numbers seldom tell the whole story...