Will LFP battery prices come down?

[AndyEss]

https://www.google.com/amp/s/amp.scmp.com/business/companies/article/3092890/battery-billionaire-who-holds-key-teslas-future-china-and-elon

Chinese battery company to make LFP batteries for Teslas sold in China. Mass market for EV’s should improve LFP prices for cruisers due to scale - I hope.

[DreamBig]

I sure hope so, I can't afford $1k per good battery that isn't gonna blow up. :-)

[GoneDiving]

Obviously you get what you pay for but AliExpress recently had 32pcs of 200AH cells for $3500 DELIVERED TAX PAID. They are currently ~$4200.

That's the equivalent of 1600AH@12v.

https://a.aliexpress.com/_d6wb4ZP

[donradcliffe]

They are already cost equivalent to AGM's on a usable amp hr basis.

[sailingchiro]

Management of Lifepo4 is the hard part with cell balancing. If you can wire a bms, you can find some good deals but does come with substantial learning curve. When you pay someone $1000 for a battery, you are paying them to do all the bms work for you.

Now add solar and things can get pretty complicated. I am installing 6 solar panels using 3 solar mppt controllers at 24 volts going to 7kw of Lifepo4 or 290 amphr. 24 volt invertor, 30 amp 24 volt charger, shunts, breakers, 4/0 wire, cell meters, 2 bms, power cutoffs, solar wire, solar connectors, plus 20 other different items. You name it, I have it. But all for about $2700. You must learn how to solder and heat shrink as well as crimp large fittings on huge wire.
BTW, I purchased my 7kwatt batteries for less than $900. Each battery is 3.5kw at 24 volts.

[Montanan]

Yes, CATL's 30+ GW production capacity is being redirected towards LFP so as to dispense with the expense of cobalt and the inherent unreliable sourcing thereof.

Robin's cost of the EV battery packs should be below $80 kWh and below $60 kWh for cells. Yet, the rate of decline in the absolute cost is slowing; it being ever more difficult to implement incremental production efficiencies, but there are still advantages when taken to his incredible volumes. They have achieved costs that avail EVs to be at parity or below ICE vehicles. That is a major tipping point.

[GoneDiving]

Originally Posted by sailingchiro

I am installing 6 solar panels using 3 solar mppt controllers at 24 volts going to 7kw of Lifepo4 or 290 amphr..

May I ask why you went to the expense and complexity of 3 charge controlllers?

Redundancy? Different sized/voltage panels?

Thanks

[sailingchiro]

Originally Posted by GoneDiving

May I ask why you went to the expense and complexity of 3 charge controlllers?

Redundancy? Different sized/voltage panels?

Thanks

Two different battery banks. one goes to house bank and 2 go to the big inverter 24 volt bank. Plus the layout of two different types of panels. In the grand total, it isn't that much for a third controller. 2 panels in series times 3 gives 6 panels. Plus expansion in future will dictate 3 controllers.

[CapnBazza]

Originally Posted by AndyEss

https://www.google.com/amp/s/amp.scmp.com/business/companies/article/3092890/battery-billionaire-who-holds-key-teslas-future-china-and-elon

Chinese battery company to make LFP batteries for Teslas sold in China. Mass market for EV’s should improve LFP prices for cruisers due to scale - I hope.

What do you mean with “will”, they are tumbling down as you read this. Why anyone would buy new old technology is beyond me.

[Paradox111]

Perhaps Graphene batteries will bring the price down?

https://www.wired.co.uk/article/grap...upercapacitors

AND

https://www.youtube.com/watch?v=eoOM--QVnH0

[newhaul]

Originally Posted by donradcliffe

They are already cost equivalent to AGM's on a usable amp hr basis.

yep untill you start looking at lifetime ah capability then the Lfp wins hands down .

I have a 250ah bank 1p4s complete with a custom 200amp.bms with balancing and a smartgage with 350 amp shunt DIY built for just under 650 installed on the Stephfen Ulysses. They will likely outlive me . ( at least 30 years ) with my usage pattern .
There is no other technology that I would let on a boat that can do that .

[S/V Adeline]

Originally Posted by CapnBazza

What do you mean with “will”, they are tumbling down as you read this. Why anyone would buy new old technology is beyond me.

What else is needed besides the battery to correctly charge and maintain it?
I need batteries and am fixing to order two 6v 235amp hr agm. $650
What could I get in Lipo for that cash?

[S/V Adeline]

Originally Posted by newhaul

yep untill you start looking at lifetime ah capability then the Lfp wins hands down .

I have a 250ah bank 1p4s complete with a custom 200amp.bms with balancing and a smartgage with 350 amp shunt DIY built for just under 650 installed on the Stephfen Ulysses. They will likely outlive me . ( at least 30 years ) with my usage pattern .
There is no other technology that I would let on a boat that can do that .

Does that price include everything needed? Could you PM me with details before I order these agms?

[newhaul]

Originally Posted by S/V Adeline

Does that price include everything needed? Could you PM me with details before I order these agms?

No problem I will get the data linked up
https://www.cruisersforum.com/forums...ml#post3063595

https://www.cruisersforum.com/forums...ml#post3063601

I can send more later I'm on bad cell service right now