Merged LiFeYPO4 1000Ah Winston prismatic cells and all electric galley...

[CatNewBee]

Thats great, so basically 1$ per Ah for the cells at 3.4V or 4$ per Ah for 13.6V packs for any size.

I guess, there are a lot of people interested.

[JuliaYu]

Originally Posted by CatNewBee

Thats great, so basically 1$ per Ah for the cells at 3.4V or 4$ per Ah for 13.6V packs for any size.

I guess, there are a lot of people interested.

Yes, and even lower price you can get with only 5KW order quantity ; )

[Steve_C]

Thanks, I am in San Antonio, Texas. However it will likely be next summer before I am ready.

I will probably be wanting 4 of the 1000AH cells or I may even opt for 8 of the 700AH cells. As my design gets refined I will certainly ask you for updated pricing.

[newhaul]

Originally Posted by JuliaYu

Yes, and even lower price you can get with only 5KW order quantity ; )

I am interested as well . Price is same I can get calb cells for on Alibaba b2b
And Winston have a better rep

[Pelagic]

Originally Posted by CatNewBee

Thats great, so basically 1$ per Ah for the cells at 3.4V or 4$ per Ah for 13.6V packs for any size.

I guess, there are a lot of people interested.

That does seem attractive.

From your real world experience what would you advise?

My present AGM 24v system is 8 x 260Ah connected series/parallel for 1040Ah @ 24v. ....that historically worked out at 10% consumption @ anchor in 24hrs, BEFORE I had Solar!

Now with 1673 W solar, if switching to this type of battery, what AH rating @ 24v would you be recommending?

[JuliaYu]

Originally Posted by newhaul

I am interested as well . Price is same I can get calb cells for on Alibaba b2b
And Winston have a better rep

Winston battery has been developing and manufacturing batteries for more than 20 years, they have accumulated much knowledge to produce better quality products. Winston have single battery with capacity reaches 700Ah and 1000Ah, which, other battery suppliers have not achieved yet. And don't forget we can offer lower price even ; )

[JuliaYu]

Originally Posted by Pelagic

That does seem attractive.

From your real world experience what would you advise?

My present AGM 24v system is 8 x 260Ah connected series/parallel for 1040Ah @ 24v. ....that historically worked out at 10% consumption @ anchor in 24hrs, BEFORE I had Solar!

Now with 1673 W solar, if switching to this type of battery, what AH rating @ 24v would you be recommending?

We would suggest 8×1000Ah connected in S.
Winston 1000Ah battery dimension is 560×130×356mm, weight 38Kg.

[JuliaYu]

Originally Posted by Steve_C

Thanks, I am in San Antonio, Texas. However it will likely be next summer before I am ready.

I will probably be wanting 4 of the 1000AH cells or I may even opt for 8 of the 700AH cells. As my design gets refined I will certainly ask you for updated pricing.

Ok, I m checking the shipping cost now, will get back to you later...

[newhaul]

Originally Posted by JuliaYu

Winston battery has been developing and manufacturing batteries for more than 20 years, they have accumulated much knowledge to produce better quality products. Winston have single battery with capacity reaches 700Ah and 1000Ah, which, other battery suppliers have not achieved yet. And don't forget we can offer lower price even ; )

8x100ah zip 98443

[JuliaYu]

Originally Posted by newhaul

8x100ah zip 98443

Ok. Checking now, PM you later...

[john61ct]

Originally Posted by JuliaYu

capacity reaches 700Ah and 1000Ah

Many sources caution against such large capacity cells for marine, high vibration / shock use cases.

[JuliaYu]

Originally Posted by newhaul

8x100ah zip 98443

Shipping by air plus customs clearance & deliver to your door, USD220. Total takes around 10 days after order. Shipping cost might change in different period of time.

[JuliaYu]

Originally Posted by john61ct

Many sources caution against such large capacity cells for marine, high vibration / shock use cases.

Theoretically yes... But under proper installation it will be fine.
The Lagoon 400S2 owner, who started this thread is using 4×1000Ah batteries, he seemed feedback good on the Winston 1000Ah batteries

[JuliaYu]

Originally Posted by Steve_C

Thanks, I am in San Antonio, Texas. However it will likely be next summer before I am ready.

I will probably be wanting 4 of the 1000AH cells or I may even opt for 8 of the 700AH cells. As my design gets refined I will certainly ask you for updated pricing.

Shipping by sea(big batteries not accepted by airline comoanies) plus customs clearance and deliver to your door, USD750. (4×1000Ah / 8×700Ah shipping cost almost same)

[CatNewBee]

Originally Posted by Pelagic

That does seem attractive.

From your real world experience what would you advise?

My present AGM 24v system is 8 x 260Ah connected series/parallel for 1040Ah @ 24v. ....that historically worked out at 10% consumption @ anchor in 24hrs, BEFORE I had Solar!

Now with 1673 W solar, if switching to this type of battery, what AH rating @ 24v would you be recommending?

To have the same power draft (AGM, max discharge 50%, effective usable 520Ah @24V) you can do that with 700Ah @24V (8 x 700), still have a safety margin of 200Ah either avoiding the shoulders or going deep when necessary.

If you have the space, 8x1000Ah will double your storage compared to what you have today and would get you in a very comfortably zone. This are from full to empty abot 28kWh...30kWh with new batteries. Winston cells are usually 20% over-provisioned, so they still can deliver the nominal Ah during the warranty time.

At the bench I tested my cells as I've got them from full after initialising to 2.9V discharge with the Victron Quattro and two 2000W heaters continous discharge, metering the energy with an inline kWh meter and the Victron BMV, I stopped discharging 0.1V before the deep discharge voltage (2.9V cell voltage under load! I just did not wanted to wreck them, I could barely believe the results, after switching off the cells recover to 3.1V), and got almost 1300Ah out of the pack (Victron BMV) and 15kWh reading on the 230V inline energy meter.

This was an extreme test, 350A constant draft 0.3C.

In normal operations I expect 10kWh from full (95%SOC) to empty (25% remaining capacity) with my 12V system, you can double the figures, so 30kWh peek and 20kWh normally with 8x 1000Ah (24V).

Solar harvesting depends really only on the available radiation. We are at anchor for about a week with very unfortunate wind directions, so most of the time 3 of our 5 panels are partly shaded by the boom, mast and rigging, also there is some overcasting. So we make daily only 5...6kWh, where usually we would have about 9kWh with our 1350Wp solar. But still enough to make water, cook and bake and not need to fire up a generator.

The SOC is this days between 60 and 90%.