[Solved] Laptop Battery Life Lasts Half as Long Overnight

It just seemed so instant, but if I think about it, my old laptop has a battery that lasts a mere 10 minutes and it about 6 years old now, and I guess I never thought about it as much because it was on Windows XP, which doesn't have a notification like Windows 7 that says "You should consider replacing your battery."

I think I found the right battery, a 9 cell vs the current 6 cell I have, but I was wondering if I would need a new AC Adapter if changing from a 6 cell to a 9 cell? I may get a new one just because the one I have was showing signs of needing replacement such as poor connection, just not sure if I would need a different one for a higher capacity battery.

Thanks for the quick reply!

So losing 20% loss per year makes sense to me, but what about the seemingly instant loss in battery capacity overnight. Yesterday I was using my laptop and it was getting my normal life at just over an hour. Then this morning I started to use it and experienced an immediate loss of battery life down to the 30-40 minutes on a full charge.

Seems very strange to me, but I guess buying a new battery is what I need to do.

Ah that might make sense. Also, I was fiddling around with my AC Adapter to see why there have been poor connections, and noticed that it isn't where the power cord plugs into the Adapter, nor is it where the power cord connects to the laptop, but where the cord running from the laptop to the AC Adapter connects to the adapter. The fixed cord is loose. I know I have tripped over my cord here and there so basically my adapter is slowly falling apart.

I don't know a lot about it, but would a faulty AC Adapter cause any damage to a battery?

Also like you mentioned about loosing a lithium cell, is there any way to check or test the cells in a battery?

could be that you were using it for especially battery-intensive purposes as well. IE turning up brightness/contrast, running music, or worse, video, anything that would work the proc/RAM. Depending on what you're doing the power could be sipped or it could be chugged.

Of course like some other users said, it could certainly just be that you noticed it now and it's been dwindling slowly for a while. Might very well be one of those "wait, what?" moments we all have.

Hop on eBay or Amazon and compare prices, battery prices are surprisingly competative on Amazon. Buy a new one, and if you feel the need, one for a backup. They're not that expensive and if you use your laptop on long drives or flights without an adapter it's worth it.

And yes, you will notice a marked increase in life from a 6 to a 9 cell. There is very little to distinguish one LIon battery from another besides the size. It will be bigger but will compensate by jutting out the back or creating a tilty stand that the battery uses. If it has the raised stand on the bottom then not only does it increase battery life, but it can increase airflow as well, as it opens up space between the table and the vent.

in my experience the 9 cells are about incrementally (2:3 or 6:9) as expensive. Like i had said before it's the same tech but a larger battery. Odd that you'd find the same battery from the same guy for different amounts, maybe he listed them wrong and didn't delete or updated them improperly. or something. i don't know.

Wrong guys, laptop life depends on the use and storage.

Google Li-ION battery, and read up.

It turns out, if fully charged then battery life drops 20% each year. However if 60-40% charged, it loses about 2% each year. Heat is also negative for the battery life.

Best temperature is between 0 and -20 C but i dont adivese putting it in a frezzer anyway (condensation).

IMPORTANT: If you do keep it in the frezzer, make sure you give it time to warm up to ambient temperature before turning it on inside the laptop, or the chamicals inside the battery might even kill it in worst case scenarios.

This means, that if possible, you should have your battery unplugged at about 50% charged, and only use it on travel.

Another option (to increase battery life but use it normally) is to get some sort of software that will block battery recharge over a certain point (60%?) and start charging at a ceratin point as well (55%?). This way you give the smallest gap for the battery to either WORK or be STORED in an unhealthy charge.

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