Battery & AC Power Question

Now I am working on a new 1520 and I was wondering about ac power. Now when I have the ac power in the laptop still seems to run off the battery and the ac power seems to just recharge the battery after it goes from 100% to 99% to put it back at 100%. Now I remember a verizon rep telling me about a phone battery, how its better to have the phone off when you charge it cause if you have it on the phone will cut off when the battery hits 100 and then when it goes to 99 it will hit the ac power again to recharge it like a battery drain. Now I was wondering if there wa laps anyway that I could make my laptop run off of ac power soley when its plugged in. and I was wondering if that same thing that happens with a phone battery can happen with a laptop battery. The only time i know that it is truely running on ac power is when I pull out the battery

 

Why don't you just take the battery out once it's charged and just run it off AC power?

 

True but if i move and the ac cord comes out.. in that rare case.. I could do some damage to my laptop

 

Well you doing some damage to battery. Lithium ion batteries don't like a constant charge and use pattern, reduces the number of charge cycles and lifespan.

Can't remember if it was this source, but was explain in a thread on here awhile back.

http://batteryuniversity.com/

 

No its not rare, especially with the frictionless dell power connection. I went through two hard drives on my dell e1505, because my battery hs been out(actually due to keeping my battery in for a year straight I was told) ANd now I am sitting here with an e1505 with a dead battery and a dead hard drive. Sweet.

It inevitable that your battery will only last one year because dell puts little timebombs in their batteries that explode as soon as your one year warranty expires. I could have swore I heard it go off, and the message- fatal battery error coming up the next day. I was like, fatal battery error WTF does that mean.

Anyways, just take the battery out when its docked and just put duct tape on the power cord so it doesnt come out

Edit: Im sorry for misleading you, you're actually screwed, just give up.

 

Whoever told you that was smoking crack.

Anytime your notebook (or phone for that matter) is plugged in it is no longer running off of the battery only the power adapter. The charging circuit will charge the battery until it deems that the battery is fully charged. Once the battery is charged all power is removed from the battery so that it is not over-charged. If the battery level drops over time the charging circuit may be enabled to top off the battery. The level that the battery needs to drop varies from manufacturer to manufacturer. Lenovo for example usually does not charge a battery until the level drops below 95%-96%.

 

Dell was smoking crack then, I knew it. I thought something didn't sound right with their explanation.