We haven’t actually finished the task of installing the new battery. When we removed the old battery we also had to remove the vented enclosure it was in. Hydrogen and oxygen gases are generated during charging, particularly so during the equalization process. These two gases are not only highly explosive, they cause electrical components to corrode. Thus we have one task remaining, that being the reconstruction of the battery enclosure. Now to the series of electrical equipment hanging on the wall:  * The first device (rectangular in shape, mounted horizontally