I have a board which had a lithium battery explode unseen and was not noticed until we attempted to power it on (quite some time later, possibly a year or more...). The PCB itself seems fine, oddly enough, but anywhere that the acid hit metal (RFI shields, switches) it blossomed with massive rust (ok, corrosion, oxidation, what have you).

Does anyone have any advice for a special method to try and clean off the board? I know there are things that you can immerse/saturate circuit boards in to remove contaminants but I wasn't sure where exactly to start. Plus, I'm not even sure if it's worth the time if it turns out to not work after all my best efforts.

It's the first time I've seen one of these type batteries explode, I believe it's an N-Type 3.6v, it must have been dead beyond dead. But all the damage was hidden underneath another part. It seems strange to me that the board, caps and resistors in the 'blast radius' look relatively unscathed other than bubbles and flakes of metal from the nearby shielding.


-- Author: vartan INET: [EMAIL PROTECTED]

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