16340 (rcr-123) small comparison

[flasohollic]

I just got these and since they were brand new, so no difference in usage i thought it would be fun to compare them.

test: constant dischare at 0,5 amp using a hobby charger (verified with multimeter) and separate digital voltage meter with live date to logview. I did use an separate voltage meter to make the test as accurate as possible(resistance from connectors\wires could interfere with the voltage reader on the charger)

Summary
Soshine very near the advertised capacity at 0,71c discharge, with slightly lower discharger im sure it would have met the 700 mAh mark.
It also delivers more power Wh than the Trustfire

Trustfire
This cell is slightly taller than the soshine so it doesn't fit wery well in some tight tolerance 2 cell lights like fenix p3d.
Far from hitting the advertised 880 mark at 0,57c

I had fun doing this, hope you will find this interesting.


Im a noob at this so comments bad or good is welcome.
Planning to add more batteries in the future.

 

[45/70]

Re: 16340 (rcr-123) shosine vs. trustfire, small comparison

Hi flas. I'd say that's a pretty informative graph you put up there. :thumbsup:

One thing I might mention is when you discharge your cells it's a whole lot easier on them to stop the discharge when the voltage starts to drop off at the "knee", in this case at around 3.50 Volts. A lot of people don't bother with this, but once the voltage hits the knee, everybody knows where it's going from there, the cell is basically discharged at this point.

Discharging cells farther than this causes a certain amount of damage to the internal components of the cell, as oxidation increases rapidly at this point. Your cells will thank you for stopping earlier than you did, and as I said, everybody knows where it's going from there anyway.

One other thing, your graph is bigger than allowable on CPF. Maximum dimensions permitted are 800x800 pixels, so you need to size your graph down a bit. The problem is when you post a picture or graph that big, a lot of folks have to scroll left and right to read all the posts in the thread you posted in.

Dave

 

[flasohollic]

Re: 16340 (rcr-123) shosine vs. trustfire, small comparison

heres is an newcomer, ultrafire 880mah PCB.

http://www.dealextreme.com/details.dx/sku.13811
http://www.dealextreme.com/details.dx/sku.3273
http://www.dealextreme.com/details.dx/sku.24979

 

[flasohollic]

Re: 16340 (rcr-123) shosine vs. trustfire, small comparison

Here you can clearly see the pcb on the ultrafire doing its job, it kicks in at precisely 2,5v

 

[Milan]

Thak you very much. I certainly prefer the big image. It confirms that all those cells are the same, no need to pay for colored wrapper.