Lux ac battery controller

EVandPV

Solarchaser said:

Each one individually said 50ah, which is what I'd expect. 
2400/48v system = 50ah.
My cycle count ranges from 979 to 127 and they all seem to report the same.
Maybe my expectations were just too high tbh

I keep waiting for mine to get to 100% charge so I can check the capacity but I tend not to be around when they get there. Maybe today, once this damn cloud burns off.

Solarchaser

Strange that it's 14 cells. 
I'd have thought 15 cells would be right,  5 in each pack, 14 is a strange number for 3 packs
3.2 x15 = 48v
So for some reason it doesn't show is the 15th cell 🤔

EVandPV

Solarchaser said:

Strange that it's 14 cells. 
I'd have thought 15 cells would be right,  5 in each pack, 14 is a strange number for 3 packs
3.2 x15 = 48v
So for some reason it doesn't show is the 15th cell 🤔

Yeah should be 15 cells, that's what Batteryview shows in the cell info at the bottom .....

Solarchaser

EVandPV said:

Solarchaser said:

Each one individually said 50ah, which is what I'd expect. 
2400/48v system = 50ah.
My cycle count ranges from 979 to 127 and they all seem to report the same.
Maybe my expectations were just too high tbh

I keep waiting for mine to get to 100% charge so I can check the capacity but I tend not to be around when they get there. Maybe today, once this damn cloud burns off.

Solar is doing pretty well here for Feb, 3kw so far today, im thinking once a couple of my batts reach 100% I'll disconnect them and shuffle them about with other batteries see if I can figure out which one is low

EVandPV

Solarchaser said:

EVandPV said:

Solarchaser said:

Each one individually said 50ah, which is what I'd expect. 
2400/48v system = 50ah.
My cycle count ranges from 979 to 127 and they all seem to report the same.
Maybe my expectations were just too high tbh

I keep waiting for mine to get to 100% charge so I can check the capacity but I tend not to be around when they get there. Maybe today, once this damn cloud burns off.

Solar is doing pretty well here for Feb, 3kw so far today, im thinking once a couple of my batts reach 100% I'll disconnect them and shuffle them about with other batteries see if I can figure out which one is low

If you put Batterview in parallel mode, you can see details for each batt in your stack.
Just select parallel after you click the connect button and tell it how many batts you have.


Then you'll get this window showing voltage, soc, etc for each batt ....

Solarchaser

Yeah I did that and noticed that the last one in my second stack was about 15% lower than the other 3, so I'm gonna shuffle them and confirm it's the one I think it is, and also if I can pull it back up by mixing it in a different place, or maybe in the other stack.

EVandPV

Solarchaser said:

Strange that it's 14 cells. 
I'd have thought 15 cells would be right,  5 in each pack, 14 is a strange number for 3 packs
3.2 x15 = 48v
So for some reason it doesn't show is the 15th cell 🤔

Think I just realised what your seeing there.
The terminal app shows the cells as an index number starting from 0 up to 14 so you do actually have 15 cells in total.

EVandPV

Solarchaser said:

Yeah I did that and noticed that the last one in my second stack was aboui t 15% lower than the other 3, so I'm gonna shuffle them and confirm it's the one I think it is, and also if I can pull it back up by mixing it in a different place, or maybe in the other stack.

I wouldn't worry too much about that. My 2nd hand one I bought last year shows that all the time. It can be up to 15% or so higher or lower than the other 2 at times but they always get to 100% and balance out ok. It's the last one in my stack too and I've tried switching them around but it made no difference.
I think it's just due to a different firmware version from the other 2 in my case, the 2nd hand one is 2 years older.

Solarchaser

EVandPV said:

Solarchaser said:

Strange that it's 14 cells. 
I'd have thought 15 cells would be right,  5 in each pack, 14 is a strange number for 3 packs
3.2 x15 = 48v
So for some reason it doesn't show is the 15th cell 🤔

Think I just realised what your seeing there.
The terminal app shows the cells as an index number starting from 0 up to 14 so you do actually have 15 cells in total.

😂😂😂
That is so much more embarrassing than you can imagine, as someone who regularly deals with logic controllers that always start with 0 😱

Well spotted mate, what a !!!!!! I am 😳😳 

Solarchaser

EVandPV said:

Solarchaser said:

Yeah I did that and noticed that the last one in my second stack was aboui t 15% lower than the other 3, so I'm gonna shuffle them and confirm it's the one I think it is, and also if I can pull it back up by mixing it in a different place, or maybe in the other stack.

I wouldn't worry too much about that. My 2nd hand one I bought last year shows that all the time. It can be up to 15% or so higher or lower than the other 2 at times but they always get to 100% and balance out ok. It's the last one in my stack too and I've tried switching them around but it made no difference.
I think it's just due to a different firmware version from the other 2 in my case, the 2nd hand one is 2 years older.

The problem is that if I watch the stack charging, it goes from around 88% to quite suddenly at 100%, much quicker than the other stack, it also is not giving me the 8.5kwh of discharge from full, it comparatively charges and discharges less than the other stack by a notable amount  (iirc 0.6kwh) so I know there is something not right, it was at least part of my motivation for getting the 3000