joshuahuang wrote: ↑
Jan 14 2021 3:32pm
oops i mean .0008 ohms or 0.8 mohms.
They are not that " .0008 ohms or 0.8 mohms."
I have tested many many. From a few different batches.
They are 4mOh in good, condition, and ( higher) 8 mOh or more, in used,.
Could you show us this reference to the figure you state?
I can show you 22 cells on a single datalog.
There are some on endlless sphere I have shown.
I can measure that low, I assure you. I do build batteries where the individual cell groups all under 1mOh. I have a million datalogs.
They are not 0.0008 Ohms. Nope.
I use a 1000Hz Dc kelvin bridge ( Wheatstone bridge). PID controlled IR determination. ONly on charge at room temp of 59*. THE one accepted by 90% of the RC lipo community. Wayne Giles, MSC guy, same system. ECT. Reports accurate over hundereds of cells for me.
Here is one cell I bought from BHU. Battery Hook Up, Tom Amerman, Allentown. With holders. This was one of the worse cells. The better logs are on the computer in the shop. Datalog. 1 cycle ( 2 charges, one full and one to storage, and 1 discharge... )
This data log was created 4/18/20. THIS cell is 5 mOh. Measured.. twice..... for repeatability, reliability, and reproducibility.