Review request for HKJ [Rechargeable Batteries]

I miss O:) EAIEP, they should be about cooked now don't they?

Not yet, they are still in the queue.

Quick question for Henrik: how/where did you got the Turnigy sub-C 5000mAh cells you reviewed? May need a cheap way to get one or two.

I recently bought two 7,2V Turnigy Stick Packs made with them, for drill battery pack restoration. After dismantling the packs measured all cell voltages, all of them were close to 1,3V except one at 1,235V. Re-raised its voltage to 1,304V and I have it under observation, but looks like it self-discharges :| quicker than the rest.

Cheers ^:)

From a Swede, but I believe they are sold by Hobby king.

Hello HKJ,

I know, that it is not rechargeable, but did you consider reviewing the Soshine AA and AAA 1.5V lithium primaries? For some low drain applications, those could be a good choice as an ‘alkaleak’ replacement.

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 :slight_smile:

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

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

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-16340-700mah.html

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.

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

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. O:)

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 ^:)

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

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+)

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.

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 :+1:

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 ^:)

Thanks for the info! :+1: