Just Place new Order on Alibaba- 280AH x 8 for 1260.00 USD Delivered, Grade A to Canada

[Sgt Raven]

If I were to lose a cell in each pack, could I not just put 4 good cells together into 1 pack?

Yes, exactly. If you have two separate complete 4s batteries and lose one pack. You're still running on one battery. The third situation, where you lose part of each pack, is where you still have another option. Now if you doubled the whole set 16 cells, then I could see going two 2P4S. Or even 12 cells with one 2P4S and the third a straight 4S battery.

I'm just thinking if you're under way at night, and you need your electronics and lights. a 2P4S and one cell goes down. Does that take down the whole system? I know on bigger ships, even with all the electronic navigation aids they have. You still have someone plotting your course on old fashion paper maps.

 

[AussieSim]

My order of 8 * 280Ah is shipping out today.

Amy (Shenzhen Xuba) was absolutely a pleasure to deal with, I recieved the same DIY solar discount as others $82.67/each with double bus bars, and Amy was able to offer delivery to the door by sea, which was $215 to Australia.

Amy sent me 5 photos of the cells and a video of each cell's voltage.

I've also ordered this 200A BMS for the build.

Find quality Manufacturers, Suppliers, Exporters, Importers, Buyers, Wholesalers, Products and Trade Leads from our award-winning International Trade Site. Import & Export on alibaba.com

Find quality Manufacturers, Suppliers, Exporters, Importers, Buyers, Wholesalers, Products and Trade Leads from our award-winning International Trade Site. Import & Export on alibaba.com

app.alibaba.com

My first batch have now arrived, door to door down under in 1 month and 11 days. No additional fees or duties on arrival.

The boxes all arrives in good condition, no sign of external damage or abuse. 2 cells per box with lots of foam padding.

I have seen various pictures of cells lined upright side-by-side where the base is separated from the top. On the otherhand some have posted their cells stacked in a tower where they're pretty flat.

None of my cells are flat on the short or long side. All of the cells are gently concave on the short sides. All of the cells undulate slightly on the long sides.

On the long sides they all concave in slightly down from the top edge. They all convex out slightly as a vertical line on the positive (less so on the negative) terminal side, and concave in slightly in between terminals.

It is subtle to the eye and touch, but more obvious in light reflection or with a steel ruler



The cells, external wrap, valves and QR codes all look brand new. The terminals all show scratches presumably from allligator clips.

I've assembled in 2 parallel packs of 4p and started a top balance. All cells came at between 3.3V and 3.27V. Not so impressed with my 2m hoseclamps, I haven't snugged them tight for the top balance, and will use MDF boards on the long sides and tape in the final assembly.

 

[nebster]

Mine are exactly the same. Enough that with some of them, it is nearly impossible to get them perfectly aligned in groups of three or four. I have resorted to swapping them around until their various undulations "cancel out" better for squaring up the terminals.

There are many other alu cells that don't exhibit this variation cell to cell, so if it's important to you, perhaps select a different model. I think it's a worthwhile tradeoff, but there is a cost, especially for large assemblages where repeatability pays time dividends.

 

[Busbum]

Hi All,
New to site, I would like to get some guidance on what to change out too, I have the following in a motorhome;

1.120 KW Canadian solar panels
Midnite Classic 150 MPPT
6 T105 GC Batts S/P. 3 12vs 660ah
2000 kw Heart inv/chgr

What would be best to do in LiFePO4, I boondock more than campgrounds, and I have been at 12v in the morning, not good!!!
I was thinking of getting the 4 cell x 3, if you think this is a good solution, if not what should I do???
Thanks all ideas would be appreciated...
Took me two days to read all the posts, really interested in going this route...
Busbum Larry

 

[OHIO_Tom]

Hi All,
New to site, I would like to get some guidance on what to change out too, I have the following in a motorhome;

1.120 KW Canadian solar panels
Midnite Classic 150 MPPT
6 T105 GC Batts S/P. 3 12vs 660ah
2000 kw Heart inv/chgr

What would be best to do in LiFePO4, I boondock more than campgrounds, and I have been at 12v in the morning, not good!!!
I was thinking of getting the 4 cell x 3, if you think this is a good solution, if not what should I do???
Thanks all ideas would be appreciated...
Took me two days to read all the posts, really interested in going this route...
Busbum Larry

If you are looking for LifePo4 batteries check out the forum "Group Buy Club" under Forums in the upper left of the screen, check out this thread it might be of interest .

280ah cells

Ok my back up supplier ran out of Eve 280ah cells, but my original supplier found out I was buying from the other supplier and so managed to get some more of the Eve 280ah cells at just a slightly higher price, but they give me better shipping rates somehow. So I still have access to about 800...

diysolarforum.com

 

[Haugen]

Hi All,
New to site, I would like to get some guidance on what to change out too, I have the following in a motorhome;

1.120 KW Canadian solar panels
Midnite Classic 150 MPPT
6 T105 GC Batts S/P. 3 12vs 660ah
2000 kw Heart inv/chgr

What would be best to do in LiFePO4, I boondock more than campgrounds, and I have been at 12v in the morning, not good!!!
I was thinking of getting the 4 cell x 3, if you think this is a good solution, if not what should I do???
Thanks all ideas would be appreciated...
Took me two days to read all the posts, really interested in going this route...
Busbum Larry

There are much better places to ask these kinds of questions.

There are a lot of conversations about how to find your answers and size your system to meet your needs on this forum, but this one is for discussing these cells and the trials of buying them from China.

Please go back to the main forum page and follow links to a thread discussing how to properly size a system for your needs.

DIY Solar Power Forum

Love building DIY solar electric projects? Come hang out :D

diysolarforum.com

 

[Busbum]

Sorry, thanks for the heads up, but I'm planning to buy these cells...

 

[Haugen]

Sorry, thanks for the heads up, but I'm planning to buy these cells...

Not a cardinal sin.
I would like you to get the answers you need, and your chances of success are better when questions are in the right place.
You may even be able to find someone who has already provided the information you are seeking. I frequently find that is the case.