Building a battery bank for a new solar system

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Nov 7, 2019
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Hi all. I'm new to this forum so please take it easy on me. If I need to repost this somewhere else please let me know.

I'm having a solar system installed on the house and I'm looking into building a battery system for it. the contractor will only install a Tesla powerwall or a LG Chem to the tune of $8K+. The capacity of either of those are paltry at best and if I'm going to get a battery back up, it better damn well do some backing up. I've settled on the LiFePo4 3.2v 200Ah https://blslifepo4battery.com/colle...-us-eu-uk-tax-free-ups-or-fedex-free-shipping
I'm looking at running them in a 48V 600Ah configuration. This looks to be the best bang for my buck unless I'm missing something somewhere (of which I'm pretty sure I am). I'll be racking them and wiring the whole system myself. The contractor isn't having anything to do with the batteries. The system will be a hybrid grid tied A/C coupled system running 27 Panasonic 330w panels with 25 Enphase microinverters. Does anyone have any suggestions regarding the battery bank (primarily) or the solar system as a whole?
 
those cell you mentioned are no-brand chinese whatever.
there is also some fuckery going on. those weights they listed do not make sense. be weary.

try to get these:
https://www.ev-power.eu/Winston-40Ah-200Ah/WB-LYP400AHA-LiFeYPO4-3-2V-400Ah.html"

way more reliable and from a verified source. also less cells so fewer things to break. just slap 16 togther and a balance board and you are done.
 
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