Comments on: Laptop Battery Care When Always Plugged In

By: Surfacing

Surfacing — Mon, 04 Feb 2013 19:26:13 +0000

When the device dies on you, you are not actually at 0% charge. There are fail safes in the power management software that will not allow the battery to be discharged beyond its minimal charge level. This is because all these electronic devices use lithium ion batteries, and the battery would be damaged were it discharged to truly ‘dead.’ In fact lithium ion batteries require a microchip to control their state in order to prevent such damage from happening. This is not only for discharge, but charging as well. They must be charged at a very precise current, and to exactly the right amount, otherwise they will be destroyed. Even cordless power tool batteries (assuming they are lithium ion) have chips built in to control the charge level.

So, the truth is you cannot actually completely kill a device battery by running them til they ‘die.’ The software prevents you from doing so.

By: notebook

notebook — Thu, 23 Sep 2010 14:49:00 +0000

you’d think, being at the cutting edge of technology, these companies would have gotten over that hurdle long ago.

By: Dell Inspiron 8200 Battery

Dell Inspiron 8200 Battery — Wed, 18 Aug 2010 05:59:00 +0000

nice post.thanks for sharing.it’s very useful.i will obey your suggestion.

By: canada batteries

canada batteries — Tue, 03 Aug 2010 07:24:27 +0000

your post is really useful,i also know some way to improve battery life.When charging the Battery Pack for the first time, the device may indicate that charging is complete after just 10 or 15 minutes. This is a normal with rechargeable batteries. New Batteries are hard for the device to charge; they have never been fully charged and not “broken in”.Sometimes the device's charger will stop charging a new battery before it is fully charged. If this happens, remove the battery from the device and then reinsert it. The charge cycle should begin again. This may happen several times during the first battery charge. Don't worry, it's perfectly normal.

By: Brendan

Brendan — Tue, 27 Jul 2010 07:49:55 +0000

mac has. they only recharge when the battery has lost a larger portion of their capacity, whereby extending your battery's life. GO MAC

By: Detton

Detton — Mon, 26 Jul 2010 21:09:44 +0000

Thanks for all the tips.

By: laptop battery

laptop battery — Mon, 28 Jun 2010 07:25:54 +0000

If you want it plugged in for performance just take out the battery and put it back on

By: Yup

Yup — Sat, 26 Jun 2010 07:05:51 +0000

you'd think, being at the cutting edge of technology, these companies would have gotten over that hurdle long ago.

By: Dave

Dave — Thu, 21 Jan 2010 21:34:17 +0000

For true, long life of your batteries, NEVER run until they die on you. That’s the worst thing you can do for them. I flew RC models for years, and had transmitter and receiver batteries test above their rated capacities for years by using a proper charge/discharge cycle. NiCads in particular should be discharged to 1.1V per cell given a double A sized battery which was rated at 1.2V per cell. So a 4.8V pack should be discharged to 4.4V before charging. If you let cells go completely dead, they don’t go dead at the same time and as such, live cells start applying a reverse voltage to dead cells causing premature failure.

What it comes down to though, there is no set rule that covers every type of battery. You need to know if they are NiCad, Nihm, Lithium-ion, etc to get the proper charge/discharge practice in place.

By: Ricky Ricardo

Ricky Ricardo — Thu, 07 Jan 2010 00:18:08 +0000

If you want it plugged in for performance just take out the battery and put it back on if on the go