The research examines the socio-economic and environmental implications of second-hand electric vehicle (SH EV) trade between the US and Mexico. Utilizing a mixed-methods approach, the study analyzes data from national surveys, vehicle registration databases, and demographic sources to assess the benefits and risks associated with SH EVs for low-income communities in Mexico. It explores how these vehicles impact mobility, environmental justice, and economic well-being, particularly focusing on the end-of-life management of electric vehicle batteries. The findings aim to inform policy-making in both the US and Mexico, advocating for regulations that minimize environmental burdens while maximizing the benefits for communities dependent on SH EVs.