I'm looking at new cells for a battery build, the samsung 50e are quite attractive with their high capacity, but I'm unsure if their cont. discharge rating will be enough for my application.
I would likely build 14s5p, I don't know if I would have room for any larger. This gives me 49amp continuous discharge. My motor is 1500w, and controller is rated to as being 22amp with a 45amp max draw.
I basically want to know if 49amp is enough headroom for a 45amp max controller, i realise it's not much headroom, but if I'm just going to 45amp for a few seconds while accelerating and then cruising after that, then the batteries would mostly be operating at 1c ish. I live in a fairly flat area too.
A second option is the samsung 40t at 14s4p but that provides much more amps than I need and im a bit reluctant due to the lower cycle life and smaller capacity.
Does anyone have experience with either of the two cells, as they've been out for a few years now, and can recommend one over the other?
The 50e makes sense, with more capacity and seemingly longer cycle life, so long as they aren't worked too hard in which case cycle life may actually be less right? And so long as voltage drop isn't too bad. The 50e spec sheet says they should work in this application but unsure if that necessarily translates in the real world
Or would I be better off going 40t and playing it safe with having high discharge and no voltage sag at the cost of smaller capacity and lower cycle life?
Its my first ebike build so I'm kinda working with all theory at this stage.
Would be great to hear from someone who has used either of the cells for a good length of time and might be able to suggest one over the other,
Cheers!
I would likely build 14s5p, I don't know if I would have room for any larger. This gives me 49amp continuous discharge. My motor is 1500w, and controller is rated to as being 22amp with a 45amp max draw.
I basically want to know if 49amp is enough headroom for a 45amp max controller, i realise it's not much headroom, but if I'm just going to 45amp for a few seconds while accelerating and then cruising after that, then the batteries would mostly be operating at 1c ish. I live in a fairly flat area too.
A second option is the samsung 40t at 14s4p but that provides much more amps than I need and im a bit reluctant due to the lower cycle life and smaller capacity.
Does anyone have experience with either of the two cells, as they've been out for a few years now, and can recommend one over the other?
The 50e makes sense, with more capacity and seemingly longer cycle life, so long as they aren't worked too hard in which case cycle life may actually be less right? And so long as voltage drop isn't too bad. The 50e spec sheet says they should work in this application but unsure if that necessarily translates in the real world
Or would I be better off going 40t and playing it safe with having high discharge and no voltage sag at the cost of smaller capacity and lower cycle life?
Its my first ebike build so I'm kinda working with all theory at this stage.
Would be great to hear from someone who has used either of the cells for a good length of time and might be able to suggest one over the other,
Cheers!