PLANTRONICS SG_106 BATTERY REPLACEMENT - Plantronics Radio Communications

If it is the internal CMOS battery, it should be an easy swap. There is a high potential that this will reset the radio settings and you will lose all saved channels/frequencies, and have to reprogram them. Cell size is usually a CR2032 or CR2032R. The R is for the rechargable version, but not all equipment will do that. If it isn't a black socket that you can easily pop batteries in and out of, you may have to buy one with solder tabs or wires already attached. I don't reccomend trying to solder directly on the battery because it can fail and even expload from the heat.