Extending time between second low battery notification and hibernation

Des,

"How can I extend that time?"

You need to increase your Critical battery level. You'll also find it useful to increase the Reserve & Low levels to suit the new Critical battery level.
- As you'll notice from the battery settings you illustrated , Reserve battery is a pre-defined notification only. No action is taken.

It sounds to me that your battery is getting worn out and is dropping rapidly as soon as the notifications start to appear.
I urge you to run a BatteryReport so you can find out the ratio of Full charge capacity to Design capacity.
- I suspect it is very low.
- If it is not very low then I'd say the battery has a defect.
So I think you need to buy a new battery.

Battery report syntax
[put in your own path in place of my D:\Desktop]

Code:

PowerCfg /batteryreport /output D:\Desktop\BatteryReport.html /Duration 1

Battery report - parameters of interest

You will want to work out the ratio
Full charge capacity / Design capacity




Best of luck,
Denis

The ratio is 0.63

However a new power plan was delivered to my computer, probably from Windows Update.



It was probably due to what happened on my 5th day of using my laptop, following an unexpected shutdown from 2 weeks ago, when the laptop was attempting to hibernate whilst it had ran completely out of battery before it had the chance to fully hibernate, in the midst of lots of programs running at the same time (as well as a 2.4GHz wireless mouse).



The one on the right is what Windows Update gave me (within the last 2 days, most likely today). Before there was only one power plan.

The only changes I had made was

• Low battery level: 10% before and 15% after
• Reserve battery level: 7% before and 10% after
• Critical battery level: 5% before and after

I'll switch from the high performance plan to the balanced plan, to see if that helps, after a few weeks.

Update: 2 weeks later

• Low battery level: 17% (+2)
• Reserve battery level: 14% (+4)
• Critical battery level: 7% after (+2)

Update: Another 2 weeks later

• Low battery level: 19% before (+2)
• Reserve battery level: 15% (+1)
• Critical battery level: 7% (no change)

Update: Another 2 weeks later

• Low battery level: 22% before (+3)
• Reserve battery level: 17% (+2)
• Critical battery level: 7% (no change)

Update: 1 week later (for when bluetooth is on)

• Low battery level: 22% (no change)
• Reserve battery level: 17% (no change)
• Critical battery level: 9% (+2)

Update: 1 week later

• Low battery level: 27% (no change)
• Reserve battery level: 15% (no change)
• Critical battery level: 11% (+2)

Update: 1 week later

• Low battery level: 37% (no change)
• Reserve battery level: 25% (no change)
• Critical battery level: 11% (+2)

Update: 1 week later




22nd of January: 0.63
30th of April: 0.49
So it continually declines by approximately 0.14 every 4 months.

The weird thing I've noticed is that the lower the current battery charge is, the faster the current charge gets depleted.

• Low battery level: 40% (+3)
• Reserve battery level: 28% (+3)
• Critical battery level: 14% (+3)

Update: 1 month later in June

• Low battery level: 46% (+3)
• Reserve battery level: 34% (+3)
• Critical battery level: 20% (+3)

Update: July

• Low battery level: 49% (+3)
• Reserve battery level: 34% (+0)
• Critical battery level: 20% (+0)

Update: July again

• Low battery level: 52% (+3)
• Reserve battery level: 37% (+3)
• Critical battery level: 23% (+3)

Update: August

• Low battery level: 55% (+3)
• Reserve battery level: 40% (+3)
• Critical battery level: 26% (+3)

Update: August again

• Low battery level: 58% (+3)
• Reserve battery level: 43% (+3)
• Critical battery level: 26% (+0)

Update: August again even then

• Low battery level: 61% (+3)
• Reserve battery level: 46% (+3)
• Critical battery level: 27% (+3)