Does not take place, charge the battery of my tractor mower that no longer displayed as 7 volts. After 12 hours load I found 14.4 volts. The choice between the cord clamp or carnations is great, I have no need to remove my battery cord is connected with eye and I just have to connect the adapter to put in charge. All contained in a bag that certainly will not round the world but good enough for storage. Very pleased to see in time ...