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German Powerwall 280xLG 18650MJ1 7s40p+ 450Wp Balcony PV System and a small question
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(04-05-2019, 02:21 AM)Geek Wrote: I wonder if there is a way to protect those cells that have had acid flux used on them. Even after they are cleaned if any remains. If you could stop air and moisture getting onto the surface, they wouldn't corrode. Maybe like brush on some paraffin wax or use some Lanox. Maybe someone has a better suggestion.

Personally, I would test if battery terminal protector effects the wrapper. If it doesn't, I'd use that. Given that they are new cells, and the pack is unlikely to require dismantling for service.

You are right. The acid flux contains F-SW21 which is "weak/limited corrosive", maybe this is actually a problem.
They sold it to me as electrical flux, so i didn't checked it further. My fault.
Which material is the cell wall build of?
I'm not sure if this is a real problem or can be dangerous, maybe someone else has more information?

Maybe I can use flux cleaner and the a protective resin afterwards. What about the cleaner, can it damage the plastics of the cell?
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RE: German Powerwall 280xLG 18650MJ1 7s40p+ 450Wp Balcony PV System and a small question - by drbacke - 04-05-2019, 04:48 AM

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