Series or parallel...

john61ct

Adventurer
Create your LFP bank from top quality bare cells, not drop-ins.

Size the cells so you only need one series string, or at most two if your mission critical use case demands redundancy.

Learn to care for them properly, it really is not rocket science.
 

dreadlocks

Well-known member
as much as I agree with the sentiment, I think MTVR is already in up to his ears on this build and has a budget he can offload some of those concerns to someone with a higher paygrade if he's going custom build it route.

If it were me with a big budget, I'd be buying the Victron LFP's over anything like BB.. its gonna cost more, but you can wire up all the batteries to an external BMS and monitor all cells individually.. they make the best "drop ins" on the market, and they are not really drop in with all the extra external stuff they need wired up to the BMS to control charge/discharge.
 

john61ct

Adventurer
Those Victrons are not drop-ins, nor is any such packaged system that gives access to cell level data, much less adjustable setpoints.

Yes if you have the money, great way to go, find an experienced dealer for support.

Besides Victron, EPS, OPE-Li3 (Lithionics/Ocean Planet), MasterVolt and maybe Redarc in Oz have good systems

just be aware, besides initial installation costs, you are pretty tied to their proprietary infrastructure.

Victron is a decent supporter of open comms interfaces though.
 

dreadlocks

Well-known member
Yeah not drop in, but it is plug-n-play to the extent they take most of the hard work out of it.. and if you buy into their gear you dont have to do much more than hook it up as their diagrams and documentation outline, select LFP for all the charge sources and hit the road... Its ALMOST as simple as a drop in, especially if your not actually dropping it into an existing lead system and building a lithium system like he's on, while being as robust and well engineered as some of the best DIY packs..

The killer is the premium price tag, but in the grand scheme of things its better than a drop in.. the drop in market prices right now is poor compared to a DIY for much less, or a superior plug-n-play system like victron for not painfully more.
 

MTVR

Well-known member
I think dreadlocks understands my situation.

FWIW, AIMS got back to me- their integral BMS does cell balancing, and you can run them in series for 24V and 48V systems.

I am thinking hard about going with 24V...
 

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