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I work on a HP laptop plugged in most of the time, and after a few months the battery went off-duty.
Of course, I could remove the battery each time the laptop is plugged and replace it each time I must move to where no sockets are around. But I think that:
- It would be really BORING!
- The computer would not avail itself of the useful backup power supply a battery can provide in case of black out.
It should simply switch off the battery charging when a safe power level is reached (i.e. 95%) and start recharging it, not every five minutes, but only under a certain safe threshold (i.e. 40% - 50%).
In its energy-saving profiles, Windows 7 only allows for setting up screen brightness, screen fadeout, screen deactivation and the suspension, not managing any charging issue.
Is there a way to accomplish this?
Fujitsu laptop has such a built battery management as you described, "switch off the battery charging when a safe power level is reached (i.e. 95%) and start recharging it not every five minutes, but only under a certain safe threshold (i.e. 40% - 50%)" It is a great feature. However, I can not find any software to do it. – None – 2012-09-04T20:09:40.480
By accident, I discovered that on my Levono B490, if I charge to full, then drain to 95%, then plug in, the laptop remains in a "not charging" state all day (95% available (plugged in, not charging)). I can plug out any time and start draining the battery (which drains from 95%), but it never charges back to 100% again unless I drained the battery first (I suppose below 80% or so). I think this is great to avoid overcharge while still having battery backup, except I'm not sure if it's a safe practice. – ADTC – 2013-10-08T11:42:37.373