Hillhater: i want the absolute maximum range within the absolute minimum weight and size to fit inside my triangle pack.
Currently i can fit 20AH/10S of lipo in my triangle bag, no sweat.
But it is quite heavy to carry up a few flight of stairs into my apartment. So that sucks. But i do enjoy the 40 mile range.
I have calculated this:
10ah 36v 20C zippy lipo = 5.6 lbs.
10ah 36v 3-5C li-Mn = 4.2 lbs.
At 20AH, that's 11.2lbs VS. 8.4lbs.
So i save almost 3lbs, and i have extra room to maybe, possibly fit another 10AH at almost the same weight with the li-mn.
Or i could have 15S/57v/20AH for 12.6lbs.... versus 10S/36v/20AH of lipo for 11.2lbs.
1.4lbs extra for 57 volt... yeah, i'll carry that extra bit of weight up the stairs for that
Also if you read my posts, i'm not looking at the 10C lipo. I'm looking at the 3-5C li-Mn packs due to it's lower weight!
I would never mess with that 10C lipo. As LFP said, it is most likely reject, 1st gen, or just low quality stuff. It might be OK, but it's a crapshoot.. and i already have a crap-ton of hobbyking lipo here.
As for those NMC cells, they are some of the least impressive i have seen so far. NMC can be so much lighter.. as in 200wHr/KG and above. Those are more like 150wHr/KG. So they're like RC Lipo in weight... yeah, they will last longer... but they're expensive and there is better stuff out there!