New Eve cells Mb30 MB31

[nx6]

The datasheet of the LF304, which has a similar capacity to the EVE MB30, states that it has 4000 cycles until its capacity degrades to 80% when charged and discharged at 0.5C.
Considering this point, isn't the MB30 an upgraded cell that has a large capacity yet maintains durability similar to that of the LF280K?

 

[PotusGobbleBottom]

I think most will pay the extra price to have someone state side that they can deal with for warranty issues.

Oh how I love being utterly irresponsible and getting my order from 18650 in just 3 days.. it scratches my itch.

 

[floop]

of

Ooh I saw this when Andy got these in his off-grid garage. P is power. So the 314Ah cell at 3.2V is 1005 Watts at 1C. .5P is 500W. Not sure why they changed this or how helpful it is.

The change is to highlight the fact that the voltage changes over the course of discharge so constant amps doesn't equal the same amount of watts over the course of a full discharge. They're saying you can continually pull 507W from a MB31 cell for the full 3.65V to 2.5V and expect to get the charge cycles advertised (along with compression and temp of course), even though the amps would be lower (138.9A) than .5C at the beginning (3.65V) and end higher (202.8A) than .5C at the end (2.5V). This makes sense as most loads, like an inverter, isn't consuming constant amps as voltage changes over discharge. The spec sheet for for MB3(0,1) is way more specific on performance characteristics relating to maximizing lifecycle performance. I love that it has clear expectation on full voltage charge/discharge to get rid of the diy folkwisdom of not charging to the full 3.65 or discharging to 2.5 to extend cell life. It's obvious that with the added unadvertised capacity, when new, that EVE expects full charge discharge to still result in the full advertised cycle count.

 

[740GLE]

And they expected the 280k to wipe the floor vs 280N. It appears to be the truth for 280k Vers 3 . . .