Advice on Charging a 3.6 Volt Lion Coin Cell

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Electric Potato

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Hi guys, I’m trying to determine the best IC to use for charging a small 3.6V ~30 mAh lion coin battery. I’ve found mixed opinions regarding wether or not you can charge a 3.6V battery in chargers designed for 3.7V.

Is it fine to use a chip like an mcp7383?

https://www.digikey.com/product-det...73831T-2ATI-OT/MCP73831T-2ATI-OTCT-ND/1979803

Is 4.2V an excessive amount of voltage to put into a 3.6 volt cell?

Thanks!
 
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There is only one way to know, read the datasheet of the battery you want to use.
It will probably tell you that 4.2V is fine.
Also don't forget to check if the minimum current the charger can deliver is not higher than the maximum battery charging current.
 
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