The Deka Unigy II SimpleSwitch Replacement Cells replacement program offers existing customers a quick and easy solution to replace their 2-volt battery cells and realize over 29% in cost savings, compared to replacing with an entirely new system, when your long lasting telecom batteries are facing end-of-life and you have an existing module infrastructure. Now your purchasing work begins. Or does it? No one wants to start all over again with a new system. When your car or truck battery dies, you don’t buy a new vehicle, you simply replace the battery. The Deka SimpleSwitch program provides the same option using the existing module infrastructure, rather than the time and labor consuming option of replacing with a totally new infrastructure in addition to batteries.