Power cells are small cylindrical objects designed to take and hold electrical charges. Type A cells are usually used for personal equipment, and the larger type B cells for vehicles and heavy gear. The engineering for the cells is substantially different, and they cannot be exchanged or recharge each other without a trained tech’s modifications or a converter unit.
Power cells can be recharged off a ship’s power plant or other grid. Recharging requires 30 minutes for a type A cell or 24 hours for a type B cell.