Owners of the venerable Radio Shack HTX-202 VHF handheld amateur radio know, if they have owned the radio long enough, that it will eventually give them the dreaded Er-1 error when they turn it on. This means that it is time again to replace the memory retention battery inside the radio.
As aggravating as it is to have to replace a part that shouldn’t have been installed so inconveniently in the first place, it’s worth doing.
I won’t go into exact details about how to do it, since there are plenty of step-by-step tutorials on the web, but I will say that I’ve done it enough in the 21 years I have owned this excellent radio that it is easy and takes about 10 minutes.
After the new battery was soldered in, I reassembled the radio, tested it, and re-programmed the frequencies, since resetting the Er-1 error means erasing everything.