How do you know what is a 'good' battery without simply relying on anecdotal reports? I guess you could torture test a battery, seems unwieldy, and a cash sink for finding bats... But...you are relying that you are getting the same battery, when it's quite possible that the 'same' battery is produced in different plants to specification of different materials and quality. Like, how do 'mech'ers' do it? Safely?
Uuuummmm
Maybe if you do a bit of research you'll find the test results?
The "better" batteries are willing to release their data and communities like CPF and cant remember the german forum and especially people like HKJ who then fully analyze the cells to see if they match this data.
Many of us don't care about anecdotal data. Or we would all be using bs "competition" batteries.
All the cells we use have real world history behind them, the 25r comes from a class of Samsung batteries that is the most popular batteries for cordless tool power packs because of its better discharge ( testing graphs are found all over the net)
And all the cells listed are made in Japan with very strict standards no matter what plant they come from. Unlike Chinese cells the Japanese battery companies do not release substandard cells , when they are made they run a set of tests on each cell. They either pass every test or they are scrapped there is no b grade from most of the Japanese companies, they won't allow a substandard cell to tarnish their reputations .Panasonic is the most stringent off all. Their cells are perfect or they do not leave the factory.this is why Tesla chose them.
So after all the information is absorbed we come to places like ECF and go so how is everyone liking this new cell?
Trust me when I say, many veterans and hardcore users here don't trust assumptions that's why you see very few long term and experienced users suggesting mystery cells like mxjo and efest