crwdns2934241:0crwdne2934241:0 Carsten Dahl Hjarup
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Hi dcar, I would suggest to use fine sand paper and use it on the corroded metal battery holder part until you get it to look like metal again. Then use alcohol of some sort to clean it off. To avoid getting dust inside tape off any holes from battery compartment to the product before sanding. best of luck.
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