this post was submitted on 10 Oct 2024
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lol. Amusingly, my wife's Dell Latitude 7400 with an i3 has much better stand by battery life than my 7x slim. The slim does wake up a ton faster - by the time the lid is open it's already doing facial unlock and it it sees me it unlocks immediately and is "fully awake", but I suspect this is achieved at the expense of more battery consumption while sleeping.
The 7x slim loses around 5% / day when asleep :(
Which OSes? Newer windows relies on newer CPU sleep states in that it doesn't actually suspend to disk/hibernate but just sleeps, trickling the battery.
Both are windows 11. It wouldn't surprise me if the older laptop doesn't support the new sleep state. I would personally trade slower wakeup for less battery use while sleeping. I don't use the laptop every day and it's kind of a bummer when I turn it on and find out it lost 20% of its charge between uses.
Even when it's "shutdown" the Lenovo 7x slim doesn't appear to actually be off.