This is info I posted on another thread I had found on a forum dealing with flashlights…
Let’s lay out the major 18650 battery manufacturers. There is
Panasonic, Samsung, and LG. Sony cells have fallen in production, as
they focus more on li-po - soft cells for use in mobile and tablet.
Panasonic provide some of the best cells for electric vehicles. LG,
Samsung, and Panasonic all produce 18650 batteries for laptops. LG and
Samsung produce more high-drain cells. But after all is said and
done, all three of these manufacturers have very similar battery lines.
Here’s a quote from another forum that deals with flashlights, electronics, ect.
Originally Posted by phantom23
Panasonic makes the best 18650 cells (3100mAh).
Companies such as AW, Redilast, Callies Kustoms, XTAR, EagleTac,
EnerPower+ use them and just add their own protection.
There’s just a few who are using other manufacturers batteries
An 18650 battery is a set of chemicals inside a protective steel
case. Then PVC shrink wrap is applied over the steel case, which gives
the 18650 its color. Some companies buy cells from large manufacturers
like Panasonic, and rewrap it with their own custom-branded PVC tube.
The following companies rewrap cells:
Efest, Vamped, Keeppower, AW, Ultrafire, Trustfire, Orbtronic, EHGTL,
Robiton’, Imren, MXJO, Nitecore, AWT, EagleTac, AmpMax, Basen,
BattEnergy, EnerPower, Fenix, Intl-outdoor, Redilast, Xtar
Rewrapped cells can be used for good or for evil.
Some companies add value by providing quality control or adding
protective circuitry when needed. However the darker side is it opens
the doors for deception - exaggerated or completely fabricated battery
Are any 18650 batteries rated higher than 30A?
No. The highest continuous discharge
rating for any 18650 battery is 30A. Some companies claim higher ratings
like 40A or 60A. These are however based purely on pulse discharge
ratings or fabricated out of thin air.
Also note that pulse ratings are
completely meaningless without noting their duration. The Samsung 25R
for example has the following pulse specifications when written correctly:
The 25R can safely be discharged at a continuous 20A (amps). Pulse
discharge levels are [95A - .5 sec, 65A - 1 sec, 40A - 5 sec, 30A - 6
For vapes and mods we recommend the Samsung 25R.
For general electric vehicles we recommend the Panasonic BE.
Laptops, high-performance electric vehicles, flashlights,
power-tools, etc. all have special needs and there is no exclusive
answer to which battery is best. It all depends on your application.
There you have it, stick with your Samsung 25Rs…