A while back I bought new WS-220-2. It arrived on Medium charge. Thought nothing about it for a few days while it was sitting in the sun. After 10-12 days in the Southeast sun, nothing was happening. I took it apart two or three times to do an AC reset. Performed the tests to check the solar panel was working, it would show the 8888. Went through the other screen test and even "tilt" although there is no auto EL on this model. So I assume the solar connections are good. When I took the watch module out, everything looks new.
After AC reset it would go back to medium. So today I took the bad battery out of the blue WS-220 and put it in my other WS-220. The charge read medium. It's on the back deck now and at full already. I know it is not fully charged but it should be by tomorrow weather permitting.
So the battery appears to be a god one by showing me it went to full. Which leaves the solar connection. The two gold colored springs do not appear to be damaged or misaligned. Could it be a faulty connection inside the module? Or something else?
AC Resets did not fix the charging inability
The solar connections appear to be fine
The watch functions as it should but the CTL-1616 is not getting recharged in the faulty WS-220
The watch is out of the return to seller window and it was cheap to begin with.
I personally want to solve this issue, I take it as a challenge
I could take the good module out and put it in the bad case. But that actually solves nothing.
Any other suggestions that I have not thought of?