AFAIK, the Raysman is a "Tough Solar" G-Shock, with a solar battery (ML2020, if my research is correct). My Raysman has been in my collection since September, 2013, and I wear it regularly, once or twice a month. But lately it was not achieving full charge, so I thought it was finally time for a battery replacement. However, I was having a hard time finding a spare ML2020 battery. So just to be sure, I opened it up to check:Yep, that's a regular Maxell CR2016. I bought the watch through eBay, so obviously the previous owner did the battery job. For all I know, if you stick a non-rechargeable battery in a solar-powered module you would fry the battery, fry the module or both. Theory not withstanding, the watch has been working perfectly these last 5 and a half years
So what should I do now? Use a CR2016 or go after the rechargeable ML2020?
PS: I made a typo: it's the DW-9350, and not DW-9530, sorry. I corrected the title.