Crossposting this I wrote in another thread:
Would not recommend that SOK.
1.
Recommended Charge Current 20 A. Your solar array will produce more than 20A on a daily basis, unless you have a tiny < 300W system. By daily charging above 20A, you'll be degrading the battery (or destroying the BMS. Not sure which of the two is the limitation for the 20A here).
2.
BMS Discharge Cut-off Voltage >8.0 V. That's way, way too low for LiFEPO4 chemistry. You don't want to go lower than 10.50V (2.50V per cell). If you don't have your own external battery disconnect, then you've just bricked your battery.
3.
BMS Discharge Cut-off Current 320A~340A. And finally... lol wtf? That's 70% higher than the peak current (200A). If you sized the wires in your system for 200A (or god forbid for the 100A continous rating), you'll soon have a burned wires/system, or burned down house.
As an aside:
4.
BMS Low Temperature Cut-off 23°F. Why even bother have a low temp cutoff in the BMS if it's over 32F (0C?). You should never charge LiFEPO4 lower than 32F (0C), or else you will brick it. While you can technically discharge a LiFEPO4 below 0C, it's not recommended.
Discharge Temperature -22°F ~ 140°F
Charge Temperature 32°F ~ 140°F
So assuming you have that 23F BMS cutoff, it's "too high" to allow for the lowest discharge temp (-22F), and too low for the lowest charge temp (32F). It's the worst of both worlds, exactly what is it trying to satisfy?
Read the spec sheet carefully and decide if these limitations are acceptable you. Are you really OK with funding these Chinese companies for a race to the bottom?
So to answer the question, "Is this 12V battery better than Battle Born?" : my answer hell
no.