Colonel Sanders
Flashlight Enthusiast
For years it has been doubted that a quality 32650 (D size) Li-Ion cell exists. I believe these Feilong cells are exceptional.
Also, I am still doing testing so more info may be added later. I am interested in doing testing at more levels and very interested in seeing how the cells' capabilities hold up after more cycles. So far they seem to be getting a little stronger with experience (that's a nice way of saying "with age".)
Here are the discharge test results.
Amp-Mah
1- 5612
2- 5580
3- 5539
4- 5559
5- 5501
7- 5404
10-5384 (I also tested a brand new MNKE IMR26650 cell at 3784Mah at 10a)
13-5226
Here is how the running voltage held up under load at 5, 7, 10, and 13a.
Min-Volt-TempF
-----------------
5a test
5- 3.78
10-3.72-83
15-3.68
20-3.63-89
25-3.59
30-3.55-92
35-3.50
40-3.43-94
45-3.36
50-3.30-95
55-3.24
60-3.15-98
65-2.88
5501 Mah
7a test
5- 3.74-87
10-3.68-92
15-3.62-95
20-3.56-98
25-3.45-100
30-3.37-103
35-3.28-105
40-3.19-108
45-2.94-111
5404 Mah
10a test
5- 3.54-96
10-3.48-107
15-3.40-117
20-3.29-123
25-3.18-128
30-3.01-134
5384 Mah
13a test
5- 3.48-101
10-3.40-117
15-3.27-130
20-3.11-140
24:08 finish
5226 Mah
149F
This cell holds up remarkably well to higher currents, IMO. :thumbsup: On the 10a testing it ran much longer (42% more capacity!), stronger (less voltage sag), and far cooler than the highly regarded MNKE IMR26650 cell. I realize that it's much larger but it's still very impressive to me.
I will add a breakdown of the voltage drop and temperature rise for the 5,10,7,&13a discharge tests later when I get a few more minutes.
THESE CELLS CAN BE BOUGHT HERE...FEILONG 32650!
Also, I am still doing testing so more info may be added later. I am interested in doing testing at more levels and very interested in seeing how the cells' capabilities hold up after more cycles. So far they seem to be getting a little stronger with experience (that's a nice way of saying "with age".)
Here are the discharge test results.
Amp-Mah
1- 5612
2- 5580
3- 5539
4- 5559
5- 5501
7- 5404
10-5384 (I also tested a brand new MNKE IMR26650 cell at 3784Mah at 10a)
13-5226
Here is how the running voltage held up under load at 5, 7, 10, and 13a.
Min-Volt-TempF
-----------------
5a test
5- 3.78
10-3.72-83
15-3.68
20-3.63-89
25-3.59
30-3.55-92
35-3.50
40-3.43-94
45-3.36
50-3.30-95
55-3.24
60-3.15-98
65-2.88
5501 Mah
7a test
5- 3.74-87
10-3.68-92
15-3.62-95
20-3.56-98
25-3.45-100
30-3.37-103
35-3.28-105
40-3.19-108
45-2.94-111
5404 Mah
10a test
5- 3.54-96
10-3.48-107
15-3.40-117
20-3.29-123
25-3.18-128
30-3.01-134
5384 Mah
13a test
5- 3.48-101
10-3.40-117
15-3.27-130
20-3.11-140
24:08 finish
5226 Mah
149F
This cell holds up remarkably well to higher currents, IMO. :thumbsup: On the 10a testing it ran much longer (42% more capacity!), stronger (less voltage sag), and far cooler than the highly regarded MNKE IMR26650 cell. I realize that it's much larger but it's still very impressive to me.
I will add a breakdown of the voltage drop and temperature rise for the 5,10,7,&13a discharge tests later when I get a few more minutes.
THESE CELLS CAN BE BOUGHT HERE...FEILONG 32650!
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