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AppHouseKitchen / AlDente-Charge-Limiter

Menubar Tool to set Charge Limits and Prolong Battery Lifespan
https://apphousekitchen.com/
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Possible to reduce max charging current as well? #6

Closed dgazzoni closed 4 years ago

dgazzoni commented 4 years ago

I'm curious where you found the BCLM SMC key to limit battery charge level; maybe there are other SMC keys that allow e.g. limiting the charging current? Fast charging is also somewhat damaging to the battery.

diogoterremoto commented 4 years ago

Awesome idea. This way the battery wouldn't heat too much while charging.

davidwernhart commented 4 years ago

Hi @swineone ! I simply found the key by dumping all the keys that MacOS uses to interact with the SMC (which was about 400 in my case) and writing values to keys that looked promising. To put it shortly, it was pure luck. It could definitely be possible that a key to limit charging current exists, but searching for it requires a lot of luck and can potentially harm your system.

I agree that fast charging is also not the best for notebook batteries. I circumvent this problem by just using a lower-wattage USB-C charger than the one that came with my MacBook. I know that this is not a particularly elegant solution, but it's the best I know so far.

Hope that helped! Best regards, David