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Hi guys, new member here. Just upgrading the 12v system in my van, I have a 110ah lead acid with Ctec charger (none lithium one) I have bought a 100ah lithium battery and a Renogy 40amp DC to DC with mppt controller. It is the older model RBC40d1S heard some stories of this draining the...

So I started with some solar for the campervan and now I am obsessed. Went and bought a Bluetti AC180 and figured out how to make expansion batteries from our ebikes (https://tinyurl.com/mrhfwc8z), I want to get a BWM X5 hybrid and put a server rack battery in the boot that feeds a powerbank...