batería
/bateˈɾia/ · B1 · noun · f
battery
🔋🥁 batería = battery; from French battre, to beat, and drums get beaten
It comes from French batterie, a group of cannons beating on a target together. That idea of a set of units gives the battery, the drum kit (a set of drums you beat), and a set of anything, like a batería de cocina (a set of pots and pans).