Guide | How To [How To] Battery Calibrate

[Nathan Wootton]

OPTIMAL USAGE OF LAPTOP BATTERY

If you are facing a problem with your battery pack and discharge time of battery is very less , follow these steps .

BATTERY PACK CALIBRATION PROCEDURE:

The battery pack calibration procedure helps users in optimal usage of a battery pack.

Calibration is the process of fully charging, discharging and then charging. It can take several hours.

1). Make sure that notebook power is turned off.

2). Connect the AC adapter to fully charge the battery pack.

3). After the battery pack is fully charged turn on the computer.

4).When the message “press F2 /del to enter into ---- “appears, pressF2/Del (i.e enter CMOS setup).

5).At this state disconnects the ac adapter and leaves the notebook/laptop on until the battery is fully discharged. (The notebook will shut down automatically. once battery is fully discharged)

6). Without switching on the notebook, connect the AC adapter and allow battery pack for 12 hour continuous charging.

Note: The above calibration process is recommended for 3 cycles generally during first time only. But experience shows when the battery shows a poor backup time, usually it catches up to specs when we do the cycling for 3 times.

Tips:
1. Every deep discharge of the battery reduces the battery capacity.
2. It is recommended to disconnect the the laptop from ac power when the battery is fully charged. Continuing to charge a fully charged battery will lead to damaging the battery.

 

[HeffeD]

1. Every deep discharge of the battery reduces the battery capacity.

It's not so much the capacity, but the lifespan of the battery.

2. It is recommended to disconnect the the laptop from ac power when the battery is fully charged. Continuing to charge a fully charged battery will lead to damaging the battery.

When the battery is fully charged, a properly designed charging circuit shouldn't be doing any more than a trickle charge to keep the battery topped off, which won't damage the battery.

The problem stems from the fact that lithium-ion batteries (which most laptops and smartphones use) aren't very happy with high heat while storing a full charge. High heat with a fully charged LI-ON will shorten its lifespan. (Don't leave a fully charged LI-ON in the car...)

Everyone knows that laptops tend to get a bit warm during use. When running on the battery, this isn't a huge problem because the charge is continually reducing while using the laptop, so it's not experiencing the heat while fully charged for long.

If however, you're running the laptop while it is plugged into AC, it's going to be keeping the battery at full charge which subjects it to high heat at a full charge for extended periods.

To avoid damaging your battery, it's a good idea to remove the battery if you're planning on running on AC. Of course this opens you up to the possibility of losing your data if the power goes out.

Here is some great info about the lifespan of your LI-ON batteries. How to Prolong Lithium-based Batteries