In-Depth RV Lithium Install & Wiring Film - Mike Mas

I removed the lifepo4 batteries from the rv & brought them inside. The trimetric meter said they had 72% SOC. Not sure how accurate that was. Inside their voltage is 13.4. I've hooked up a small led light to drain a bit of power.

I know the voltage stays flat even as the SOC drops. I want to store them for months and know that's best at 60% SOC or so. ANy thoughts on what that may be for mine?