Nissin 4800GT Flashgun (Japan) and battery pack(detatchable) PPB 6

battery pack is working, despite some erosion on battery cover (see photos)

when connected to the flashgun, the flash works fine, loads, test buttons flashes, as well as shorting the flash cable pins

when the batteries are inside the flashgun itself, it does not load. Not sure if fixable, or easy to fix. It should be faulty connection, I don't see rust on flashgun battery cover.

essentially it works when the batteries are inside the pack.

Not sure about compatible models, you have to find this yourself

bot using 6x AAA batteries

Please buy accordingly, this is old partially faulty(assumingly) item

only basic functionality tested - ON/OF, test

If you have questions please ask, I will try to answer the best I can