A sealed batteryA battery with a captive electrolyte and a resealing vent... to which water cannot be added to maintain electrolyteA nonmetallic (liquid or solid) conductor that carries current by... level.
A sealed batteryA battery with a captive electrolyte and a resealing vent... to which water cannot be added to maintain electrolyteA nonmetallic (liquid or solid) conductor that carries current by... level.