Has anyone used the Molicel M50A cell? In p-depths of 4 or more (single drive) or 7 or more (dual drive) this seems like it’d be a good choice. I don’t think I personally would run them past 10A per cell.
That graph says it’s for the LG M50
But I am curious about he Molicel M50A
Whoopsie, graph removed
Lol I was thrown off by that when googling the cell too, naming scheme is way too close
According to internet forums, its diameter is 21.7mm, so same as the P42A. They really love cheating with the size to get better specs, don’t they?
On the other hand, unless you’re using NESE, that’s probably a good thing
Yep I think I was reading the same thing you were
For us, the slight size difference is probably a non-issue for 99% of us.
If anyone can find a discharge graph, please post it
Based on the voltage sag. I’m not thinking this can really do much above 10A continuous… but thermally it may be fine. Don’t have those graphs to show for it yet tho.
Wow, it sags A LOT, especially at constant power draw. Looks like P42A is definitely better at lower P counts.
Yeah idk about that. I think I might pass on these unless in 12P or higher depths
FYI, I am running P42A cells in standard NESE 21700 enclosures and the cells fit fine.
I agree, 10A is probably a good limit for decent efficiency.
The M50A is rated at 15A continuous. That tech presentation ratings page has a 20A rating but that was changed based on customer requirements. The datasheet lists it as a 15A cell.
I’ll be testing these late this week or early next week but this is a high internal resistance energy cell and isn’t really comparable to a low internal resistance power cell like the P42A.
I don’t know yet where the P42A becomes the better choice but I’m guessing it will be around 15A or so. At above that the P42A or 40T will actually run for longer down to your cutoff voltage due to the higher efficiency (lower DC IR) of those power cells,
The very first thing I was looking for was a Mooch test
that’s what i do as well, maybe i should start saving those screenshot instead of googling it.
hi Mooch… welcome to the jungle… as you can tell, we love your analysis, and science on all things LiOn…
Good to see you here man. You’re a bit of a legend around these parts for debunking the mysterious battery specs and we appreciate you the more for it. Thanks for taking the time to do what you do
A visit from the mooch man!