My AW C's are starting to fail

[SR.GRINGO]

I purchased two batches of the AW C......1st run, and 2nd run. Some are starting to not hold there charge over a month storage cycle. I have 6 left, and the need for 14 in total. I have many of Varooj's C creations.

So the big question is whether to go with the AW 18650 2600, or maybe the dx C( I am very hesitant to do this). Is there any other option I'm missing?

 

[DM51]

Sorry to hear your cells are failing. As a matter of interest, what charger have you been using for them, and how many cycles have they done? What voltage are they holding 1 hour after charging?

 

[curtispdx]

I purchased two batches of the AW C......1st run, and 2nd run. Some are starting to not hold there charge over a month storage cycle. I have 6 left, and the need for 14 in total. I have many of Varooj's C creations.

So the big question is whether to go with the AW 18650 2600, or maybe the dx C( I am very hesitant to do this). Is there any other option I'm missing?

For what it's worth, I own a few of the DX C cells and haven't had a problem with them. (One out of six or seven no longer holds a charge but that's it.) What their TRUE capacity is, however, I have no idea. They're not being used much anymore because I'm using the AW IMRs but I sure like the idea that the DX's will slide into any old C tube with no problems while I have to get my Mag bodies bored to take the AWs.

 

[jasonck08]

How long ago were they purchased, and how many cycles would you guess they have been through at roughly what kind of current draw?

 

[yellow]

my DX- Li-Ion Cs are crap,
runtime under a good 18650 cell - in the same setup.

unnecessary bigger light for nothing

 

[SR.GRINGO]

I purchased the 1st batch around the time AW ran out of the 1st run...(guessing around 3/4 years ago..could have been more)

2nd batch was purchased when his 2nd run started(wish I would have purchased more!)

The first month or two I used the cheap 1 cell charger that AW had linked on his sales page....soon after purchased an adapter to work with my pila IBC charger.

As far as how many cycles I have no idea.... For the most part I didn't let them die. Probably on average 2x per month. I have been running a Fm85, Mac's variable P7, 5761's with AW's soft start, WA1111's.

Around a year ago ended up having so many different forms of AW's purchased a Bantam BC6. Just charged up 6 C's starting at 2.3 amps and got the following readings after 1 hour.

1. 4.18
2. 4.18
3. 4.18
4. 4.13
5. 4.12
6. 3.91

 

[jasonck08]

So it looks like one cell @ 3.91v definitely should be recycled, and then there are 2 other cells that are starting to go bad.

Let the other 3 sit for 24hrs then take another reading. If its under 4.15v then they are starting to go bad...