A longer lasting battery for my convoy s2+.

Hi people. I have decided to seperate my vaping batteries and my torch batteries, as it opens many more options for batteries that are suitable for my flashlight.

I currently use samsung 25R’s, and on my old s2+ on mid I got 3.5 hours before flashing low battery, someone in the thread mentioned I probably had a 30% mid instead of 40%, as I thought this was impossible, but that made it possible.

I haven’t tested the new one for full life on mid, but I THINK it is brighter on mid than my old one, but that is from memory so they may be identical. So it is either 30 or 40% mid.

I want a battery that will last as long as possible, preferrably IMR or similar chemistry, not too fond of the ICR chemistry.

Any ideas on a battery that will give me longer life?

As I am seperating the batteries any brand I will use for my torch/flashlight, even Efest if that is the best for torches.

I want maximum life on Mid mode, and for it to be nice and bright like the 25R’s currently are (I used them last night, I went on a bike ride in the dark, and bought a mount for my flashlight. It was brighter than car headlamps. I had to make sure it was dipped and pointing slightly left or I would dazzle drivers).

So, anyone who can offer me a good battery with longer life, preferably IMR or INR, please let me know :).

Thanks, Conan.

EDIT: I have also asked at my other hobbies forum, as I did have a battery recommended but I couldn’t source it, asking if they knew anywhere that stocks it. I explained it was for a flashlight so they didn’t jump on me for the battery being ‘only’ 10 Amps lol.

CGR18650CH it’s IMR Panasonic. 2 250 mAh.
NCR18650BD 3200mAh 10A
NCR18650PF (LiNiCOMnO2) 2900mAh 10A
NCR18650PD (LiNiCoAl) 2900mAh 10A
Orbtronic 18650 3500mAh 10A

18650HG2 by LG. 3000mAh

INR18650-30Q 3000mah 15A Samsung

The 3000MAH ones sound tempting, wont the 2250’s last less than my current 2500MAH ones?

I have been Looking for the LG’s myself due to high amp rating and large capacity, I can’t seem to get them, But I think I may be able to get the orbtronic in the UK, or the samsung (I haven’t looked for these samsungs before, only 25R’s, but as these are for flashlight only I will look).

I am not sure if my charger can take ICR’s, it is a Nitecore i2 Intellicharger, it lists IMR, -Li-ion, Ni-MH, NiCd.

EDIT:I gather the Li-ion is ICR compatible.

INR is also good. If ICR is the standard though, I will use them. It’s not like thermal runaway happens without warning is it? I would notice hissing wouldn’t I?

The i2 will take pretty much any common 18650 chemistry EXCEPT LiFePo. Some of those cells listed above are rated to max capacity at 4.3x volts. The i2 will not charge to 4.3v so you'll be losing out on some capacity if you decide to opt-in for those cells.

Ahh, I did not realise that. What is a charger that will charge to the correct voltage, or easier which batteries should I avoid?

Ahh, I did not know that. What batteried should I aim for out of those then? Or what is a reasonable charger that will charge to 4.3V?

I don’t know if it will be a good idea with my brain damage to get a charger that can charge higher than my current batteries, as I get confused easily due to it and may overcharge my other batteries due to the forgetfullnes and confusion.

For least amount of worry I would get the highest capacity cell that will charge to 4.2v. AFAIK the Sanyo/Panasonic NCR18650GA , LG INR18650MJ1 and Samsung INR18650-35E is the most cap you can buy in a 4.2v cell on the market at 3500mAh each.

Since you're using these on an S2+ higher current draw may not be as important to you vs runtime, but its good to have that option :)

Or you can just knock off a 7135 chip from the 105c/d ;)

I think you had said that this new S2+ is a 6x7135? So 2.1A max. On mid you’re likely barely pulling a full Amp. I wouldn’t worry about what the cell can handle in terms of current, I don’t think you’ll be pushing it very hard.

That being said, I’d choose the highest mAh you can find. I would not worry if that ends up being ICR chem. ALL 40 or so of my 18650 cells are ICR and only 4 of my Li-ions are even protected.

For what it’s worth, I use a 3100mAh Orbtronic (panasonic) ICR 18650 in my S2+ with 6x7135 chips. I was using it weekly for about 5 months before the cell dropped to 3.65v. And the light was still dang bright and plenty good. So I wouldn’t sweat it too much.

Yeah good point, nowhere will I be pushing the battery like in other applications.

I can get hold of Panasonic NCR18650B 18650 3400mAh for a fair price so think I might get some of them.Still an extra 900MAH than my current batteries, so worth a try, and they are not too expensive either.

5 Months? You do mean occasional use yeah? I am going to use this as my bike light as well as I have a mount so will be running it down fairly often, but 5 months is impressive even with occasional use.