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Charging a lithium battery to 80% only?

electronics.stackexchange.com

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Re: Charging a lithium battery to 80% only?

#361

Post by FeepingCreature »

kube-system wrote: post #324
matheusmoreira wrote: post #216

Earlier quoted context omitted.

I don't understand why devices can't switch to external power when plugged in. It's like they simultaneously charge and discharge the battery instead of bypassing it.

Depends on the device. Some do. Some actually can't, because they are capable of drawing more peak power than their wall chargers provide.

Yeah I can notice the battery dropping on my Thinkpad even when it's powered on, if I put moderate to heavy load on the CPU. So it has to be using the battery like a buffer.

Re: Charging a lithium battery to 80% only?

#362

Post by circuit10 »

Kirby64 wrote: post #360
circuit10 wrote: post #357

Earlier quoted context omitted.

You seemed to be arguing that no one needs this feature and it doesn’t need to exist. Not everyone buys the latest iPhones straight from Apple, I’m typing this on someone’s old iPhone 7 and it works fine. The battery life isn’t great but maybe if Apple had implemented this feature earlier it would be better. Replacing the battery would probably cost almost as much as the phone if I did it via Apple.

I'm not sure what you're arguing for here? I'm not aware of any phone that offered a charge limiting option (Android included) 7 years ago. And replacement parts for super old phones remain relatively high in comparison to the value of the device. This is just like cars; at some point it isn't worth fixing/repairing it.

I'm just arguing that having the option to limit battery charge is probably a good idea
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