A locker cabinet for storing and charging rechargeable batteries, the locker cabinet comprising a plurality of compartments (c1,c2,c3,ci) stacked on top of each other starting from a bottom compartment up to a top compartment, and wherein each of the compartments is delimited by a first side wall, a second side wall opposite the first side wall, a bottom wall, a top wall opposite the bottom wall, an open front side and a back side opposite the open front side, wherein each of the plurality of compartments comprises: • a power outlet (p1, p2, p3, pi) for supplying power for charging a rechargeable battery when stored in the compartment, and • a door (d1, d2, d3, di) for closing off the open front side of the compartment, wherein the locker cabinet further comprises: • an aerosol distribution chamber, • a first aerosol generator located within said aerosol distribution chamber and configured such that when activated an aerosol is released into the aerosol distribution chamber, • at least one smoke detector located within one of said plurality of compartments (c1,c2,c3,ci) or located within the aerosol distribution chamber, • an aerosol controller configured for activating the first aerosol generator if a smoke alarm is triggered by the at least one smoke detector, • a common chimney configured for evacuating gases from each of the plurality of compartments, wherein each of the plurality of compartments (c1,c2,c3,ci) comprises a gas evacuation opening fluidly connected with said common chimney such that smoke or any other gas when present in any of the plurality of compartments can evacuate through the common chimney, and wherein the back side of at least the bottom compartment comprises an opening fluidly connected with the aerosol distribution chamber such that when the first aerosol generator is activated the released aerosol flows from the aerosol distribution chamber into the bottom compartment through said opening of the back side of the bottom compartment; characterized in that the locker cabinet further comprises a second aerosol generator located within said aerosol distribution chamber and configured such that when activated a further aerosol is released into the aerosol distribution chamber after a given predefined time delay has elapsed since the activation of the first aerosol generator, and a delay relay configured for defining said predefined time delay. wherein each of the plurality of compartments comprises: • a power outlet (p1, p2, p3, pi) for supplying power for charging a rechargeable battery when stored in the compartment, and • a door (d1, d2, d3, di) for closing off the open front side of the compartment, • a power outlet (p1, p2, p3, pi) for supplying power for charging a rechargeable battery when stored in the compartment, and • a door (d1, d2, d3, di) for closing off the open front side of the compartment, wherein the locker cabinet further comprises: • an aerosol distribution chamber, • a first aerosol generator located within said aerosol distribution chamber and configured such that when activated an aerosol is released into the aerosol distribution chamber, • at least one smoke detector located within one of said plurality of compartments (c1,c2,c3,ci) or located within the aerosol distribution chamber, • an aerosol controller configured for activating the first aerosol generator if a smoke alarm is triggered by the at least one smoke detector, • a common chimney configured for evacuating gases from each of the plurality of compartments, • an aerosol distribution chamber, • a first aerosol generator located within said aerosol distribution chamber and configured such that when activated an aerosol is released into the aerosol distribution chamber, • at least one smoke detector located within one of said plurality of compartments (c1,c2,c3,ci) or located within the aerosol distribution chamber, • an aerosol controller configured for activating the first aerosol generator if a smoke alarm is triggered by the at least one smoke detector, • a common chimney configured for evacuating gases from each of the plurality of compartments, wherein each of the plurality of compartments (c1,c2,c3,ci) comprises a gas evacuation opening fluidly connected with said common chimney such that smoke or any other gas when present in any of the plurality of compartments can evacuate through the common chimney, and wherein the back side of at least the bottom compartment comprises an opening fluidly connected with the aerosol distribution chamber such that when the first aerosol generator is activated the released aerosol flows from the aerosol distribution chamber into the bottom compartment through said opening of the back side of the bottom compartment; characterized in that the locker cabinet further comprises a second aerosol generator located within said aerosol distribution chamber and configured such that when activated a further aerosol is released into the aerosol distribution chamber after a given predefined time delay has elapsed since the activation of the first aerosol generator, and a delay relay configured for defining said predefined time delay.