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Battery safety question, serious answers only please: I've just received this sealed, new-in-box Ouya controller off eBay, and it looks like the alkaline AAs it came with have had a spicy party. The entire inside of the box and outside of the controller is covered in this dry white dust - would it be safe to just thoroughly clean/brush it all off, install different new batteries and start using it? (Edit: please read existing thread/replies before commenting further) #retrocomputing
@timixretroplays After initial cleaning, you need to neutralise the alkaline leakage with white vinegar. It's only metal parts that are at risk so get the vinegar on battery connectors etc. and anywhere there looks like corrosion on PCBs (if applicable). After neutralising, thoroughly clean with IPA. If necessary, recoat affected parts of PCBs with solder/etch resist (nail polish will do).
Obviously, you're going to have to dismantle the controller to get full access.
@Yoss1960 I don't think any metal parts have been exposed - the batteries were never inside the controller, so the contacts should be clean, ditto for the electronics. There's not even an external USB port on Ouya controllers so I think the only internal damage could be around where the thumbsticks protrude through the case.
@timixretroplays Even better. A thorough cleaning should suffice.
After looking more carefully at your pics, it's (blindingly) obvious that the batteries are in box packaging, not the controller.
@Yoss1960 @timixretroplays little tip as I understand if you do this on metal parts. Its very effective, but clean off the viniger afterwards. Apperently it can react with some metals and produce some not fun gasses. It shouldn't matter id its ashor tperiod like 30 minutts, but its recomended to rince it off.