I really gotta get some sleep but couldn’t wait to share the news about the new 30Q. I just bought one from Illumn along with a fresh HE2 for comparison. My iCharger is reading about 33 miliohm for both, which is a huge surprise to me… I was expecting high 30s at best and likely 40-45. Next stop, my standard bench test. It’s simply a voltage reading at the battery contacts while running 4 XML2s in parallel. First up, the HE2 pulls 3.78V which translates to about 17.5A. Sounds about right. Then I test the 30Q……………………………………………… 3.80V! That’s the highest I’ve seen I’m pretty sure. I’ll have to check my notes but either way it’s awesome! That’s like 18A! I put it on a Ch/Dshg cycle at 1.5A each way, 4.2 to 2.6V (no sense leads so this is more like 2.65V at this current). I’ll post the capacity numbers in the morning.
Would you check capacity down to 3.0v? After you’ve slept, when you have time of course. I know other batteries give capacity down to 2.5 as well but that just not useful for our usual single cell lights.
1.5A discharge to 2.65V came out to be 2976mAh. That was with a 0.5C CC/CV charge with a 150mA termination current. Rested to 4.19V. I currently have it doing multiple 3A cycles and will post the plots this afternoon.
Edit: Also, the last time I looked at the cell last night, it was at 750mAh and still at 3.86V. That puts it above just about every cell in HKJ’s comparator when splitting the difference between the 1A and 2A plots. In fact, that’s comparable to the LG D1 when charged to 4.35V (previously my favorite EDC cell)
Looks like a great cell folks. It’s surely exceeding my expectations so far. I’m still looking forward to getting my hands on LG’s version, the HG2, along with LGs and Samsungs NCA offerings the MJ1 and 35E that are coming in the next few weeks.
All 3A discharges
Black - Orbtronic 3400
Grey - Evva BD
Light Pink - LG D1
Bright Pink - Samsung 30Q
Dark Pink - LG HD2
Red - HE2
Green - LG E1
Light Blue - 25R
Teal - 20R
The problem I’m having is that the 30Q cells I just got today from BangGood only have a 3 digit third line… which would imply that these are “early” cells, but I think that the 30Q line is brand new, so should have a 4 digit code.
On the wrapper:
INR18650-30Q
SAMSUNG SDI
136
On the can, inside the wrapper: J0F8
67F71
as best I can decode from the web page above, this is a Korean (SDI) cell manufactured on the J line, perhaps in August ( 8 ) of 2015 (F). The third line of the wrapper marking being 3 digits rather than 4 MIGHT mean it was manufactured on the 6th rather than the 16th?
I have 2 30Qs,one from Banggood,and the other from Gearbest.Both have 136 on the 3rd line.
INR18650-30Q
SAMSUNG SDI
136
Both identical.
The gearbest has a sticker on with;
E-D05-B3-108
132935001
Bar code
15-09-23
The sticker is almost certainly not from Samsung and the 23rd Sept 15 date corresponds with the dispatch date.
