I’ve been using this for quite some months - so this is not that new. Price is the best - consistently around $3.50/cell (shop around) - and has relatively low internal resistance for ICR.
None of mine has ever scored lower than 2.6Ah (1A), so they’re really maintaining the capacity throughout batches (I have at least 4 batches). Kudos to Samsung for excellent QC.
I have 3 of these powering my power drill. I know IMR will do better job but these get the job done at half the price, I only use my drill for some DIYs and projects. But I knew the battery didn’t seem to strain so much nevertheless - proven now by 7A HKJ discharge that the battery still maintain 2.5Ah capacity.
Good batteries.