I've been wanting to do a comparison of the Sony VTC4, VTC5, LG ICR18650HE2 and Samsung INR18650-25R for a while now.
Here's a chart of these batteries at 5A discharge, in 2 second bursts from the dampfakkus.de website. 5A is the highest they chart at. The curves are the number of hits. If you want to, scroll to the bottom and look at the colored matrix. The values are mAh not hits, but the relationship of the two will be the same. In other words, if one battery did 98% of the hits of another battery, it also scores 98% of the mAh. The grey numbers are volts under load. I know my voltage drop with VTC3 and VTC4 is around 0.5V at around 10A (0.4 ohms) in my mods and I change my batteries out typically at around 3.6V minimum, so I never go less than 3.1V under load and that is the lowest data I loo at in any charts.
The rows in the matrix are the number of hits. For 3.2V you'll see the Samsung wins in the top three by a small margin and the chart gives you a visual of how close they actually are. The only real loser in this group is the VTC4. Keep in mind the numbers will likely change as the amp draw goes up and things could look better for another battery. I'm looking at 3.2V because the lower 5A discharge will have less V-drop than 10A does.
Here are charts from Illumination Supply with VTC4, VTC5 and HE2 at continuous 20A and 35A discharge rates. 35A continuous on 20A batteries is very interesting. They do however write under the charts; 'Please do not attempt to do a continuous discharge without proper cooling. - Illumination Supply'. I know the VTC cells heat up above 20A continuous, specially the VTC5. It would be interesting to know if the other 2 heat up too.
At 20A, down to 3.0V, the VTC5 is the clear winner and the HE2 is slightly better than the VTC4. At 35A, down to 2.7V the VTC5 is again the clear winner, the VTC4 comes in a solid second because of the strong mid range power and the HE2 comes in last.
Here are Illumination Supply's charts of the counterfeit VTC5 (Samsung 25R), a real Samsung 25R, VTC4 and VTC5 at 20A and 35A. At 20A the VTC5 is a clear winner over the others and the 25Rs beat the VTC4. At 35A, without the VTC4, the 25R has less voltage drop for the first half, but the VTC5 then picks up and beats it from there and by around 100 mAh at 2.7V.
So how do the HE2 and 25R compare to each other? I put both charts at 20A and both at 35A together, trying to align them as best I could.
For the next one I took out the VTC4 curve for clarity. The VTC4 came in last place.
I'm not suggesting it's safe to vape any of these batteries at 35A, but the data was out there and it's quite interesting.
That's it, that's all I've got. I'm still learning how to work with these charts, so if anyone sees any mistakes I made please let me know. Also if anyone has more data on these batteries let me know too.
Here's a chart of these batteries at 5A discharge, in 2 second bursts from the dampfakkus.de website. 5A is the highest they chart at. The curves are the number of hits. If you want to, scroll to the bottom and look at the colored matrix. The values are mAh not hits, but the relationship of the two will be the same. In other words, if one battery did 98% of the hits of another battery, it also scores 98% of the mAh. The grey numbers are volts under load. I know my voltage drop with VTC3 and VTC4 is around 0.5V at around 10A (0.4 ohms) in my mods and I change my batteries out typically at around 3.6V minimum, so I never go less than 3.1V under load and that is the lowest data I loo at in any charts.
The rows in the matrix are the number of hits. For 3.2V you'll see the Samsung wins in the top three by a small margin and the chart gives you a visual of how close they actually are. The only real loser in this group is the VTC4. Keep in mind the numbers will likely change as the amp draw goes up and things could look better for another battery. I'm looking at 3.2V because the lower 5A discharge will have less V-drop than 10A does.
Here are charts from Illumination Supply with VTC4, VTC5 and HE2 at continuous 20A and 35A discharge rates. 35A continuous on 20A batteries is very interesting. They do however write under the charts; 'Please do not attempt to do a continuous discharge without proper cooling. - Illumination Supply'. I know the VTC cells heat up above 20A continuous, specially the VTC5. It would be interesting to know if the other 2 heat up too.
At 20A, down to 3.0V, the VTC5 is the clear winner and the HE2 is slightly better than the VTC4. At 35A, down to 2.7V the VTC5 is again the clear winner, the VTC4 comes in a solid second because of the strong mid range power and the HE2 comes in last.
Here are Illumination Supply's charts of the counterfeit VTC5 (Samsung 25R), a real Samsung 25R, VTC4 and VTC5 at 20A and 35A. At 20A the VTC5 is a clear winner over the others and the 25Rs beat the VTC4. At 35A, without the VTC4, the 25R has less voltage drop for the first half, but the VTC5 then picks up and beats it from there and by around 100 mAh at 2.7V.
So how do the HE2 and 25R compare to each other? I put both charts at 20A and both at 35A together, trying to align them as best I could.
For the next one I took out the VTC4 curve for clarity. The VTC4 came in last place.
I'm not suggesting it's safe to vape any of these batteries at 35A, but the data was out there and it's quite interesting.
That's it, that's all I've got. I'm still learning how to work with these charts, so if anyone sees any mistakes I made please let me know. Also if anyone has more data on these batteries let me know too.
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The 25R maintaining a higher voltage for the first 1000 mah is an interesting result. I wonder if that would translate into any real world results at a competition.
. The only good part of this story is as long as they are IMR based safer chemistry batteries, no matter who makes them, they have never blown up in use.
. I found it interesting that both batteries heated up a bit at 12.5A.
