Is LiFePO4 worth investing in?

Weight- no limitation.
Being used over 10 AGM batteries as typical requirement.. lithium anything is a miracle technology in that sense.

It would be some AGM and the rest an unlimited amount of lithium cells in terms of what is required to run a load.

Sizing- no limitation.
Again, there is plenty of room even for 1000aH winston cells if i were rich, heh.. but seriously, space is not an issue either.

Power/energy-

I have 2 options so i will attack the harder option first to see where i stand.

I need to be able to handle 9,800A (12v application only) for 3 seconds then end of load. Afterwards, much lower load will follow.
Continuous load- 500-2000A

AGM capability- 600aH

If voltage is lower than, 11.7v, for example, there will not be a 2000A continuous load, it will be lowered.


Current ideas-
Because i would need ~7,300A of surge power from LiFePO4.. I've looked at the following-

240 A123 AHR32113M1UltraBs
120 A123 AHR32157s

48 60aH prismatics (5C continuous, 10C burst)= 720ah, 7,200A surge (0.33C for 5000 cycles) 2.5v shut off
For safety sake, i'd program one of my controllers to kill the entire load if voltage dropped to or below 10.5v with these cells.

My price limitation i'd like to stay under is $4,000.

Those 3 options do that.

I didn't name the brand of the prismatic's above because i do not know it.

I just know it comes inside aluminum case and is considered LY-60aH


My fall back option is to cut the surge load in half from 9800 to 4900 and use less cells (which prismatic any brand would be more open to purchase).

The only thing i'm leary about is this-

If i use 100+ cells, i'm afraid of Uneven Discharge Distribution!

The source of the load only comes from 4 devices, each device with 6 active connections.

So that's 24 connections capable.

With 240 cells with no board, that's 60 packs to connect to.. Not really divisible by 24 and am afraid of uneven discharge rate with so many connections.

Same with 120 cells with no board.. 40 packs on 24 connections..


Would it be safer to stick with prismatic simply due to high amperage in very short usage?
I'm not afraid of the loads not being shut down from low voltage, i'm afraid of very strong discharge rates imbalancing the cells rapidly causing chaos.

I do not know if that's possible on just 1 cycle between manual charging/balancing but i am cautious with taking care of expensive investments.

While the 2nd option of scaling back to 4,900 is a last resort option because more power is always better,

And FYI, i've looked into Ultracapacitors but they will not work for my application because of 2 reasons-
1- too expensive
2- reserve capacity no where near the capability of LiFePO4 once they are used for much lower continuous discharge.

I am easy to deal with in terms of limitations.Weight- no limitation.Being used over 10 AGM batteries as typical requirement.. lithium anything is a miracle technology in that sense.It would be some AGM and the rest an unlimited amount of lithium cells in terms of what is required to run a load.Sizing- no limitation.Again, there is plenty of room even for 1000aH winston cells if i were rich, heh.. but seriously, space is not an issue either.Power/energy-I have 2 options so i will attack the harder option first to see where i stand.I need to be able to handle 9,800A (12v application only) for 3 seconds then end of load. Afterwards, much lower load will follow.Continuous load- 500-2000AAGM capability- 600aHIf voltage is lower than, 11.7v, for example, there will not be a 2000A continuous load, it will be lowered.Current ideas-Because i would need ~7,300A of surge power from LiFePO4.. I've looked at the following-240 A123 AHR32113M1UltraBs120 A123 AHR32157s48 60aH prismatics (5C continuous, 10C burst)= 720ah, 7,200A surge (0.33C for 5000 cycles) 2.5v shut offFor safety sake, i'd program one of my controllers to kill the entire load if voltage dropped to or below 10.5v with these cells.My price limitation i'd like to stay under is $4,000.Those 3 options do that.I didn't name the brand of the prismatic's above because i do not know it.I just know it comes inside aluminum case and is considered LY-60aHMy fall back option is to cut the surge load in half from 9800 to 4900 and use less cells (which prismatic any brand would be more open to purchase).The only thing i'm leary about is this-If i use 100+ cells, i'm afraid of Uneven Discharge Distribution!The source of the load only comes from 4 devices, each device with 6 active connections.So that's 24 connections capable.With 240 cells with no board, that's 60 packs to connect to.. Not really divisible by 24 and am afraid of uneven discharge rate with so many connections.Same with 120 cells with no board.. 40 packs on 24 connections..Would it be safer to stick with prismatic simply due to high amperage in very short usage?I'm not afraid of the loads not being shut down from low voltage, i'm afraid of very strong discharge rates imbalancing the cells rapidly causing chaos.I do not know if that's possible on just 1 cycle between manual charging/balancing but i am cautious with taking care of expensive investments.While the 2nd option of scaling back to 4,900 is a last resort option because more power is always better,And FYI, i've looked into Ultracapacitors but they will not work for my application because of 2 reasons-1- too expensive2- reserve capacity no where near the capability of LiFePO4 once they are used for much lower continuous discharge.