first time charing up the battery

I just bought a compaq laptop (v2570)

Being a noOb and an idiot, i forgot to charge up my battery to the max for maybe 6 hours on the first time before using it.

I've drained out the battery all th eway, and recharged it overnight (~10 hours)


would this make any difference to my battery

 

Don't worry about it. Just let it charge all the way up to max sometime soon.. If you want the power meter to show up right (% of bat left to be correct) you also need to discharge it all the way to the minimum.

 

Don't you worry too much about it. if at all it makes any difference, it would not be noticable. All these batteries are Li-Ion batteries and does not have memory affect. I think it is more for Calibration rather than anything. Use it for a month are so, and once calibrate the battery.

Check HP site on how to calibrate Li-Ion.( fully charge the battery, start it in safe mode on battery and leave it on until it dies, then charge the battery fully, that's it).

EDIT: Sidicas, you beat me to it.

 

None what so ever pk_volt. Though if you consistently/regularly partially charge a battery before use it will diminish the battery's life cycle. That's right, a 3-4 hr battery can become a 1-2 hr battery in about 8 or more months.

So, relax... you're fine if you seldom partial charge a battery. Just don't make a habit of it unless you want to be on a short power string

But remember, even though you practice proper recharging procedures, over time your battery will still lose capacity and it's ability to hold a charge (which will be compounded by poor charging practices), mostly due to cell aging, and a phenomenon called voltage depression.

Voltage depression is a problem that doesn't affect the battery capacity, rather, the battery voltage drops unusually quickly as it discharges tricking battery gauges into thinking the battery is dying (low battery warnings) although it still has lots of capacity left. (note: fully discharging cells cures voltage depression)

 

just to be clear.

don't plug the power cord into the laptop unless the battery is all drained out.

But is it ok to to USE the laptop while the battery is all drained out and the power cord is plugged into the laptop to recharge it?

 

Yes, that's fine, using the computer while it's charging won't affect anything but how long it takes the battery to charge.

 

I don't agree, you just claimed that is it better to completely drain a Li-ion battery before recharging. While it is right as being part of a first-time calibration, I strongly advise you to NOT do that on re gular basis (it is recommended to do this once every 2-3 months or so)

Just recharge the li-ion whenever you can/need. There is no memory effect. Discharging the battery before recharging this way will just increase its wear, increase the charge cycles and wear the battery unnecessarily.

Additionally, li-ion battery don't always like being drained until they can't produce any more power, this makes charging even more difficult; 0-20% and 80%-100% are parts of a charge cycle that are critical, as they require slower recharge. If they would be recharged all the way full throttle, this would significantly reduce its effectiveness. If any of you would like to spectate this, get "Notebook Hardware Monitor", pray that your notebook supports (dis)charge amp meter/ volt meter/load meter (or whatever it uses for calculating charge/discharge rate in Watts) and see how fast it charge when at 50%, when at 90%. Personally, I've seen a charge rate of 37w when being in the 20%-80% range, and much lower than that when being in the 80%+ sector ... going to 20w, 10w, 5w, until it is charged (0w)