It is probably related to the lack of/poor S3 sleep support. Generally, if the laptop is warm (and not charging) it's dissipating lots of that battery charge whether you want/need it or not.įinally, indeed, it is annoying as *bad word* that the laptop loses so much power (mine at the rate about 0.5W) while suspended. Sometimes just a bit of extra load every few milliseconds can make the power manager decide not to switch the CPU into a lower power consumption mode, so even if the average CPU load is displayed as a few percent, the CPU may still be drawing way more power than it needs.
Not only the wifi card can be a power hog (regardless of what/how much data is being transmitted) especially when the connection is weak, lots of websites have buggy/malicious/cryptomining scripts on them, so if you have a dozen tabs open in a browser, your processor may be as loaded as if you're doing full time heavy duty computations. I would also note that "websites browsing" should not be considered a low-power usage. It is possible to get to ~4W discharge rate when the computer is pretty much on idle, not connected to any devices, does not use wifi/bluetooth, and has its brightness settings on absolute minimum. I experimented a bit recording the discharge rates for various regimes and found that the typical rate with moderate usage and low display (FHD) brightness is about 7W. So I am getting mentally prepared for getting a new one before the end of 2021 already.Īll in all, however, the math is simple: = /. Not only mine arrived with max stored energy of 48Wh in May, it is already down to 40Wh, i.e., it's losing about 2% of its advertised max. I have 9300, but they probably use the same *nominally* 51Wh battery.
For more power-efficient communication between the devices, keep Bluetooth enabled on iPhone.Alas, it only gets worse as time passes.
There are a few ways you can preserve battery life on your Apple Watch: After it’s removed from storage, it may require 20 minutes of charging with the original adapter before you can use it.
If you store a device when its battery is fully discharged, the battery could fall into a deep discharge state, which renders it incapable of holding a charge.
Do not fully charge or fully discharge your device’s battery - charge it to around 50%.If you want to store your device long term, two key factors will affect the overall health of your battery: the environmental temperature and the percentage of charge on the battery when it’s powered down for storage.