The eco-worthy doesn't have low temp charge protection so if you go for that one, make sure whatever DC-DC and MPPT you fit does have a low temp charge cut off. Charging a LiFePO4 battery when it's below zero degrees is a BIG no.
Also, that battery has been on offer a couple of times recently at £180.
The temp cut of is for over temperature not low temp. D C Guy did a tear down for utube which is very interesting. OOOO, Was it this video? - just watching it now :) Warning, you will get dizzy watching this, the camera is all over the place! ECO-WORTHY 12V 100Ah lifePO4 Internals
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