Delays caused by the pandemic have left me with a brand new Victron LiFePO4 200Ah battery that won't be connected until the rest of the system components arrive. Unfortunately it's now been 3 months sitting in the box and could be there for another 1-3 months until it's installed. How long can new batteries be left unused before degrading or being damaged and what should I be doing during this period to keep it healthy? I've been checking the voltage once a fortnight with a multimeter, it currently reads 13.32V which hasn't changed since its arrival 3 months ago.