Prospec Imaging Aa/aaa Battery Plate

These are the exact same product as the Watson charger and plates, and are completely interchangeable. It appears that Watson and several other companies (Prospec I believe is or was Calumet Photo's in-house brand) just OEM these from the same manufacturer. I have used them interchangeably and they work fine. In my case I wanted to pick up extra plates and a couple spare chargers, and it was cheaper picking up these Prospec branded parts than the Watsons. Watson also doesn't appear to sell the AA/AAA plates. That said, I think Calumet may be doing away with the Prospec brand (or at least with this product), so I'm not sure how well they'll be supported in the future. If you want the AA/AAA plates though, or want to pick up extra plates or chargers on the cheap, this is a good way to go.I have used these to charge AA's and AAA's and they do work fine. Multiple sources including the manufacturer have also confirmed these are designed to work with NiMH batteries even though the charger itself only mentions Li ion. All things considered though, I still use my regular OEM chargers when I'm at home (or in the case of AA/AAA, chargers that are designed expressly for NiMH batteries). These are effectively my travel chargers (since I can just a single charger with multiple plates).