Leaving notebook plugged in

In the 18 months or so that I've owned my 12" PowerBook, rarely has it not been plugged in. The battery has never failed or given me any problems on the few occasions when it was unplugged. Maybe I've just been lucky . . .

shouldn't be a problem unless you get fried by a lightning bolt and aren't plugged into a surge protector.

QFT.

Always use a surge suppressor.

It willnot hurt anything. Just try to remember to cycle the battery once every 30-45 days if you can. It just helps the longevity of the battery.

Also QFT

make sure you cycle your battery every once and a while to keep it in good condition. I use my laptop unplugged at least a couple times a week so I don't have to worry about it. But if you're using it as a DTR make sure you unplug it every once and a while to drain it down and then just plug it back in. This will keep the battery in the best shape for longer.

it's fine, the laptop is smart enough to not kill your battery or anything. As stated, cycling the battery every month or so will help out.

what do u mean by cycle?

To cycle the battery is to drain and then recharge it.

This is my first post in this forum. I do not like the power cord plugged in while the battery is in its bay. I prefer to remove the battery once it is fully charged and I will be on AC power. I am taking the risk of losing my data once the power is off but as a precuation I always save my documents.

Why? It's not like you can overcharge the battery. Leaving it in while plugged in doesn't hurt the battery at all.

Yeah, leaving it in doesn't hurt the battery. However, if you do take it out for a long time, you should discharge it to about 40-50% before you do so. Also, store it in a cool place.

I would feel like the system is missing something without the battery. My battery slides in from the back, so there would be a gaping hole if I took it out,and it would be noticable. My laptop is light enough to where it will lift the whole system up if I try to open the lid without holding the bottom down, and without the battery, I can only imagine how bad it would be.

Hi guys, an experience from a Fujitsu user.
I used to have my laptop constantly running on battery, till it died, and the plugged in in the mains, so batter life was prolongued...
Result? In 8months my battery failed. I asked for a new, since warrantee was 1year, they told me battery warantee is 6months...

umm, wen i receive my notebook, i will have 2 batts
a 9 cell n 6 cell
wen i rodered it, i asked for a 9 cel in stead of 8 cell as the priamry bat. and in my purchase, i got a 6 cell as a seconadry batt for free. i have heard that the 9cell batt sticks out of d anotebook, does ne1 know how much it sticks out, pics are also good in this example!

The 6 Cell battery and the 9 Cell battery are both the same physical size. The only difference is weight.

Most lithium-ion battery provides 300-500 discharge/charge cycles. The battery prefers a partial rather than a full discharge. Frequent full discharges should be avoided when possible. Instead, charge the battery more often or use a larger battery. There is no concern of memory when applying unscheduled charges.

Although lithium-ion is memory-free in terms of performance deterioration, batteries with fuel gauges exhibit what engineers refer to as "digital memory". Here is the reason: SShort discharges with subsequent recharges do not provide the periodic calibration needed to synchronize the fuel gauge with the battery's state-of-charge. A deliberate full discharge and recharge every 30 charges corrects this problem. Letting the battery run down to the cut-off point in the equipment will do this. If ignored, the fuel gauge will become increasingly less accurate.

Aging of lithium-ion is an issue that is often ignored. A lithium-ion battery in use typically lasts between 2-3 years. The capacity loss manifests itself in increased internal resistance caused by oxidation. Eventually, the cell resistance reaches a point where the pack can no longer deliver the stored energy although the battery may still have ample charge. For this reason, an aged battery can be kept longer in applications that draw low current as opposed to a function that demands heavy loads. . The lower energy dense manganese-based lithium-ion, also known as spinel, maintains the internal resistance through its life but loses capacity due to chemical decompositions.

The battery acts as a surge protector. If you remove it you remove a notebook's built-in surge protector. Of course you can always add a second, external surge protector as well!.

^The battery does not act as a surge suppressor. The battery will take over if the main voltage rail goes down enough, not if it goes too high.

So the closest thing to the laptop + battery is, I guess, half of a UPS. A real UPS handles brownouts/blackouts and overvoltage.

hapirott, are u sure the 6 adn 9 cell batteries are same size? i read somewhere that the 9 cell is slightly larger.

In the past that was true but not today.

I have the 6 & 9 cell batteries for my 9300. I generally use the 6-cell and keep the computer plugged in 24/7. If I go on a trip I take the 9-cell.

My dad has an 1100 he bought the same time as I bought mine. He has never used it unplugged and the battery still lasts 4 hours. Mine lasted 30 minutes before I sold it because I used the battery so often.