Review request for HKJ [Rechargeable Batteries]

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adam7027
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HKJ wrote:
Depends on price and availability.

You can get them here and here .

HKJ
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adam7027 wrote:
HKJ wrote:
Depends on price and availability.

You can get them here and here .

I have ordered some

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

adam7027
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HKJ wrote:
adam7027 wrote:
HKJ wrote:
Depends on price and availability.

You can get them here and here .

I have ordered some

Thank you, I’ll be curious of your result Smile

HKJ
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adam7027 wrote:
Thank you, I’ll be curious of your result Smile

It will be some time, I took the slow boat option.

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

Barkuti
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At the given price for those lithium primaries I can buy a bunch of alkalines (a lot really), and if I were to worry I'd laminate them LoL.

In my experience I've rarely seen leaking alkalines, something which can happen to a very minor extent when AC recharging them, and their consecuences aren't terrible either. I've even had alkalines in vintage toys without issues, yet I preserve stuff well.

I really see no point in buying lithium primaries other than financing unworthy dubious technologies.

 

Cheers 

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djozz
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Hi HKJ,
I have bought a pair of these 16340 batteries and they perform surprisingly well and I wonder how they compare to the AW 16340 15C that you tested a few years ago.

https://eu.nkon.nl/rechargeable/14500-16340-18350-18490-18500/enercig-16...

HKJ
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djozz wrote:
Hi HKJ,
I have bought a pair of these 16340 batteries and they perform surprisingly well and I wonder how they compare to the AW 16340 15C that you tested a few years ago.

https://eu.nkon.nl/rechargeable/14500-16340-18350-18490-18500/enercig-16...

I am interested in testing them, but I will not order just two of them due to shipping.
If there are a few more good ideas from nkon I will order, preferable batteries at 2800mAh or lower, that test station do not have a long queue.

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

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I had a look around in the Nkon store but could not find any more interesting batteries to test.
Anyone else?

Barkuti
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I'd shift a bunch of the batteries in the “above 2800mAh” test station queue to the “up to 2800mAh” one, at least in the meantime. Innocent

Now that I recall the recent Turnigy Sub-C 5000mAh (Gray) review (likely the best sub-C cell in the market), I could suggest testing some of the prismatic cells being sold at HobbyKing to check their ratings' reliability and how good they really are. Mooch tested some of these packs in the past, he found exaggerated ratings but overall great power delivery performance. Just a small suggestion.

Oh wait! Just remembered I recently ordered KingWei 18350 1000mAh cells, will be conducting capacity and DC IR tests on them upon receipt. I'm not necessarily suggesting these, I believe they are the same 18350 cells currently being rewrapped by Shockli and BestFire, but their seller's Shop924810 Store has some interesting stuff worth looking at, imho. In store local searches are not working for me there. 

 

Cheers Party 

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adam7027
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Barkuti wrote:

At the given price for those lithium primaries I can buy a bunch of alkalines (a lot really), and if I were to worry I'd laminate them LoL.

In my experience I've rarely seen leaking alkalines, something which can happen to a very minor extent when AC recharging them, and their consecuences aren't terrible either. I've even had alkalines in vintage toys without issues, yet I preserve stuff well.

I really see no point in buying lithium primaries other than financing unworthy dubious technologies.

 

Cheers 

 

1. Not everybody is that lucky with the alkalines as you, Barkuti Smile

2. Lithium primaries holds voltage better during discharge. Sometimes, 1.25V of NiMH is not enough, but 1.85V of NiZn is simply too much, so a solution is always welcome to keep voltage around 1.5V for the most time.

3. For low drain devices, lithium primaries has a very long life expectancy (10-15 years+)

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That may be true adam7027.

Ni-Zn too much voltage? While this may be true for some devices, I think most would probably take the surplus, it's not that much really (less than 1.75V for most of the discharge curve). Problem is that by the time you may notice the cells are discharged the designed to run with alkalines or carbon zinc appliance will have discharged them quite low.

 

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Mike K
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Hi HKJ,

Love your web site. I didn’t see a Nitecore NL1835HP 3500 tested on it. I would be interested to see if it was as good as Nitecore claims. I have one in my HC33 and love it. Thanks! Mike Thumbs Up

Mike K

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Mike K wrote:
… I didn't see a Nitecore NL1835HP 3500 tested on it. I would be interested to see if it was as good as Nitecore claims. …

Short answer: no. I may be wrong, but I really doubt it.

Nitecore does not manufacture li-ion cells, they outsource them from actual manufacturers, maybe add protection circuitry like in this case, button top, different wrap and exaggerated specifications. Maybe not by much, but lies anyway. Inside that “3500” NL1835HP probably is a Samsung INR18650-35E, LG INR18650-MJ1/M36, Sanyo NCR18650GA or Murata US18650VC7 cell. These are the cream of the crop in high capacity 18650s and none of them meet a 3500mAh rating. You can check some Nitecore cell reviews by Henrik and see why I say exaggerated ratings: Nitecore IMR18650 3100mAh (Yellow) 2018 (Samsung 30Q inside), Nitecore 18650 2900mAh NL1829LTHP (Black-yellow) 2018 (Panasonic cell).

 

Cheers Party 

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Mike K
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Thanks for the info! Thumbs Up

Mike K

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Ni-MH enquiry: bought a couple Turnigy sub-C 5000mAh 7.2V stick packs recently and dismantled them, no loose pieces were available by the time. CC/CV mode charged them all in parallel up to 1.414V. Cells have been resting 4¼+ days and just measured their open circuit voltages. From lowest to highest, in volts:

  1. 1.350
  2. 1.361
  3. 1.363
  4. 1.368
  5. 1.370
  6. 1.371
  7. 1.372
  8. 1.374
  9. 1.376
  10. 1.376
  11. 1.377
  12. 1.378

Is this a wild self-discharge spread? I'm not too versed in Ni-MH stuff, right now I am charging up the cells in standard chargers and will assemble them in series. Did another sub-C pack in the past and after charging up all cells I first set all of them in parallel for voltage balancing, I wonder if this does really matter. 

Thanks for any tips.

 

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I know some people will laugh on this, but I would like to ask for a review of a NCR18650B from GTF (yes, GTF).

I used to buy batteries from Liitokala and liked their cells, but they changed their shipping methods and screwed everything up ($150!). Then I found some NCR18650B from the “GTF Official Store”. I had already seen bad ratings on them, but nothing about this specific cell model, and since the price was the same of Littokala, but with cheap shipping, I bought it. Allow me to say that they look brand new, very well wrapped and have the same weight than Liitokala NCR18650B. They also get the same mAh ratings on the Lii-500.

https://pt.aliexpress.com/item/100-Nova-NCR18650B-Originais-3-7-v-3400-m...

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pietropetris wrote:
I know some people will laugh on this, but I would like to ask for a review of a NCR18650B from GTF (yes, GTF).


Penta-legged/penta-lobed tops, cells likely manufactured by some chinese OEM (Shenzhen BAK probably).

The problem with this is financing a counterfeiting business model.

 

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pietropetris
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I had two doubts about this cells: is it original? and even if not, is it a good cell?

I looked pics of original flat top NCR18650B and there was not so many ‘legs’, so looks like my first question is answered. But the second one remains…

However, looking on the counterfeiting point, you guys can ignore my request.

Thank you anyway!

HKJ
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I have ordered two cells.

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

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Time to add some interesting stuff here.

First of all I must admit I've been vaguely considering the purchase of some additional battery testing gadget, for affordable money of course (not in Innocent a hurry). But I also like things to be good, powerful and even beautiful, so let me show you:

 

https://www.aliexpress.com/item/DC-digital-voltmeter-300V-100A-ammeter-voltage-Mobile-APP-meter-car-battery-capacity-volt-current-detector/32957814319.html

That looks like a lot of gadget for little money. I wonder if that can make discharge graphs, it looks like it is able or sort of.

I may be looking at the wrong Big Smile stuff, but certainly looks interesting.

 

I also found quite inexpensive 16500 cells which look to be manufactured by Heter Battery: https://www.aliexpress.com/item/2pcs-lot-Free-shipping-16500-battery-1200mah-3-7V-Li-ion-rechargeable-battery-with-flat-top/32882185152.html

I have no particular interest in them but found them good candidates for a review given their price.

16500 is an odd battery format, what stuff uses this?  They do fit in SK68 flashlights, but I seriously doubt they were designed with them in mind. Maybe for the small electric appliance market?

 

Cheers Party 

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HKJ
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Barkuti wrote:

Time to add some interesting stuff here.

100A, I doubt it, except for a short peak.
I have ordered both your suggestions.

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

master-of-disaster
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HKJ,

could you retest the Panasonic NCR18650B on the 4-wire test station?
It’s still the most common high-energy cell.

Also, it would be very nice to be able to compare 3 cells in the comparator instead of only 2.

Thanks for your work and great website!
I read the “multimeter design” article yesterday and learnt a lot.

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Hey HKJ,

I want to thank you for your time and work. I would like to ask if you could test the Sofirn 18650 3000mAh batteries. You can buy them here in their AliExpress store.

https://m.aliexpress.com/item/32926129538.html?trace=storeDetail2msiteDe...

Thanks and best regards
Tom

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At the current time I have a long queue for battery >2800mAh and do not want to buy any for testing. For smaller batteries my queue is basically empty.

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

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For small cells, think this 16340 has been mentioned before, but the IMREN 14500 and 16340 would be great - I've had both for quite some time now.

https://liionwholesale.com/collections/batteries/products/imren-imr-14500-700mah-button-top-battery?variant=33786711889

https://www.imrbatteries.com/imren-16340-700mah-button-top-battery/

 

HKJ
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Tom E wrote:

For small cells, think this 16340 has been mentioned before, but the IMREN 14500 and 16340 would be great – I’ve had both for quite some time now.


https://liionwholesale.com/collections/batteries/products/imren-imr-14500-700mah-button-top-battery?variant=33786711889


https://www.imrbatteries.com/imren-16340-700mah-button-top-battery/


 

Do you know any EU shops or Chinese shops that sells them?

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

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HKJ wrote:
At the current time I have a long queue for battery >2800mAh and do not want to buy any for testing. For smaller batteries my queue is basically empty.

Vapcell is releasing a “16340 800mah 7A” cell. I guess some info will available here, and I suggested Dennis to send you some to test them.

EDIT: And it is never too much to thank you for all your works in these tests! So thank you HKJ Beer

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Sorry, no, but haven't searched yet.

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The Vapcell 16340 is listed now:
https://www.aliexpress.com/item/High-capacity-power-RCR123A-Vapcell-1634...CDR-3-7v-Rechargeable-Li-lon-Battery-First/33000319786.html
I’m curious about the blue 14500 650mAh too, how does it compare to the purple Efest:
https://www.aliexpress.com/store/product/High-power-original-Vapcell-INR...
The Vapcell 18350 seems to have changed manufacturer without changing the wrapper, there was a rand about that by Mooch I seem to remember, maybe a re-test?
https://www.aliexpress.com/store/product/Vapcell-purple-18350-Li-ion-Rec...

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Generally speaking the price of these newer cells leaves me  far from being thrilled. The newer 16340 800mAh and Vapcell's 18350 “1100” (cough!) are the worst offenders, particularly the 18350 which can be bought from a well known alternative source at a shockingly Wink better price. Please lower your jacked up 18350 prices Vapcell, please.

I do not like button tops. I do not like disguising cell practices.

 

Cheers Party 

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