Samsung 'INR21700-45T' (CC4503F101) 4500mAh 50A (CDR) - Any info on it?

I just spotted this (really new?) Samsung battery on Nkon(.nl): https://www.nkon.nl/samsung-inr21700-45t-4500mah-50a.html

There isn’t almost any info to be found about it via Google (not for ‘INR21700-45T’ or ‘CC4503F101’), but there are a few (unknown) sites who mention them, including 18650battery.com (although ‘not in stock’ and linking to the wrong (40T) spec sheet in the listing.)

Potentially this could be a nice upgrade/improvement over the ‘classic’ Samsung 40T; a bit more capacity and a 50A CDR instead of the 35A CDR of the 40T.

I have to place an order at Nkon anyway (and they listed it as ‘in stock’), so I will order 1 or 2 of them, to test them (roughly) for listed capacity (mAh) and internal resistence. (I have a new, dedicated, battery internal resistence tester coming in, in the next few weeks.)
Unfortunately I don’t have a way to accurately (and extensively) do discharge tests/graphs on them at the moment.

@Mooch have you spotted this one already? (And do you know anything more about it?)

3 Thanks

I’ve heard about it but know nothing and haven’t seen it anywhere I can order it here in the US. Folks are excited about it but IMO it will be another great performer in that class and not be a super cell that can outperform the 40PL or JP40. It would be great if I was wrong though. :slightly_smiling_face:

I am very jealous that you can order them! I’d be happy to take the time to fully test a pair but getting them to me here in NYC is expensive and Nkon won’t ship cells here.

5 Thanks

I had already looked up your location, because if it was easy (inside the EU), I would have shipped you a pair for free.
Taking a second look now, I might have found an acceptable way (in terms of cost) to ship 2 to you, but it depends on if I can reach the max. dimensions, and even if that shipping company allows the shipping of Li-ion batteries. (I will try to look up some more information about it in the next few days.)

Regardless of what happens, I will order a few anyway and will ask Nkon afterwards if they can maybe provide a datasheet. (Last time I did that was with the 40T5, which they where only willing to provide a datasheet after someone had ordered the batteries.)

3 Thanks

Wow, thank you so much for your efforts!
Even the datasheet would be cool to see.

3 Thanks

Also ordered samples for cycle life testing and dissasembly to check the internal design.

3 Thanks

Im looking forward to the test results… especially long term. Lets hope it can deliver the outstanding number of charge cycles of the 40T (in its latest iteration). Ive often noticed that as density increases within the same cell model, cycle life is greatly reduced.

1 Thank

Sorry for my slow reply; unfortunately I was sick for a couple of days, so everything got a bit delayed.

I’ve looked at several shipping options and the requirements for shipping Lithium batteries to the US, but unfortunately it’s a bit more complicated (and therefore more expensive) than what I hoped for. (I won’t bore you with the details.)
Because of those reasons, it’s not economically viable for me to ship a few 45T’s, since all the extra (shipping) costs would exceed the value/price of the batteries several times.

If I will recieve more information (like a datasheet for example), I will surely let you know though!

2 Thanks

No problem at all, I completely understand. Thank you for seeing if it could be done!

2 Thanks

I’ve recieved them over a week ago, but had no time to test them yet.

Both came in at 3,55 Volt, which is fine/acceptable.

I haven’t had time to do a (amateur) capacity test yet, but I did do a internal resistance test. I also tested a (almost) new Samsung 40T(5), with 1 charge/discharge cycle on it and quite ‘recently’ purchased. All three battery where simultaniously charged fully on the same charge rate and had the same time to rest before IR was being measured. (All measurements taken on the Fnirsi HRM-10 battery tester.)

45T #1 measured 7,36 mΩ
45T #2 measured 7,30 mΩ

The 40T(5) measured 11,30 mΩ

Below are a couple of photos I quickly took:

It is difficult to see, but on this photo (under the wrapper), you can just make out:
R45T
P8RQ1

3 Thanks

You may check my 45T results, first 100cycles at 5C discharge with 5C, 10C voltage discharge charts are already available. Not so bad for a first revision of the cell, my experience with Samsung is that they significantly improve cycle-life in next revisions, which I think will arrive soon. On the other hand, the existing competition in tabless BAK 45D is deadly.

3 Thanks