Culture

Synths, strictly speaking, don't have a culture entirely for themselves, but rather see themselves as culturally intertwined with the society that surrounds them. For the most part this would be the culture of the Outer Rim, although smaller Synth populations exist within other civilizations as well. However, even though they blend into the society that surrounds hem, their synthetic origin and way of living differs from the organics around them.

Energy Consumption

Synths are entirely synthetic and have ways of powering their bodies that differ greatly from that of organics. Organics have to consume food to gain nutrition, which their bodies convert into energy to power the body's processes, from movement to cognition. Without this energy, a body will die. Synths require regular charging of their battery tissue to keep them alive. This has led to charging points being a common thing all throughout the Outer Rim. Just as organics like having sources of food around, Synths feel comfortable knowing that they can sit on a bench nearby to recharge their batteries a bit when they feel tired. The ubiquity of charging points often leads to Synths forgetting that they require energy to live, since they so often enter places or use furniture that charges them without them even noticing. Battery sxtensions and modules that generate power themselves make the need to charge even less noticable.