1.) Always use your laptop on a hard surface.

Laptops are portable and it's easy to set your laptop on your bed and use it at your lesiure. That's one of the benefits of having a portable computer. Flexibility. But if you want to extend your Laptop battery life you have to watch out for overheating your laptop.

Heat is one of the biggest obstacles to battery life longevity. Your laptop computer fan cannot circulate the air properly when your laptop is sitting on soft surface.

2.) Do not keep your battery installed when you use your laptop on AC for an extended period of time.

While your laptop is undoubtedly using a smart charger to charge your battery even a constant trickle charge over months can reduce your battery life. For best results, only charge your Laptop battery when you need to charge it, don't leave the laptop battery plugged in all the time.

More importantly than the trickle charger affect is the 'storage' of a Li-Ion battery at elevated temperatures. The optimum storage temperature for a Li-Ion battery is at 0 deg. C. The optimum storage charge level is about 40%. Unfortunately we tend to store fully charged and at the temperatures found in a running laptop you'll find a significant reduction in battery for your laptop performance after only 12-18 months.

3.) Use a full charge cycle before recharging

Li-Ion and NiMH battery (which most laptop battery are), do not have a memory which you might find in NiCad batteries. However, each chemistry has a limited number of charge cycles, so use a full charge cycle before re-charging to maximize your Laptop batteries usage.

Because this may be very difficult to manage, you'll need to consider the cost-benefit ratio for keeping track of how far discharged the battery is before you charge it again.

4.) Be careful where you store your laptop

This goes back to the heat issue. Don't leave your Laptop Battery in the car where it can get very hot.Batteries hate heat and your battery will go on strike permenantly if you expose it to too much heat.

Remember that all laptops are not created equal. You may have gotten 4 hours from your last laptop while on laptop battery , but your new laptop might pull more juice to run that gaming quality processor, or the power hogging programs you're running now. Read your owner's manual to find out what you should expect from your laptop battery and be sure to compare apples to apples when purchasing a replacement Dell Inspiron 6400 battery. Not all laptop batteries are made to the same specs. We recommend buying a battery that has at least as much capacity as your original battery (that's the mAh rating), and preferrably the same chemistry as well.

Charging and Discharing

Your device is powered by a oem adapter. We research that most of people purchase the laptop ac adapter which is not fit their laptop for they ignore dc size such as (5.5*2.5, 4.8* 1.7) is different from their old although they have the same out put. So our web site list them by out put and dc size together.

If a replacement laptop ac dc adapter is being used for the first time or if the adapter has not been used for a prolonged period.it may be necessary to connect the adapter charger and then disconnect and reconnect it to start the charging.

If the batteries is completely discharged,it may take a few minutes before the charging indicator appears on the display or before any calls can be made.Use the adapter only for its intended purpose.Never use any charger or adapter that is damaged.

Do not short-circuit the laptop ac dapters. Accidental short-circuiting can occur when a metaillic object such as a coin,clip,or pen causes direct connection of the positive and negative terminals of the replacement adapter.(These look like metal strips on the adapter).This might happen,for example,wehn you carry a spare adapter in your pocket or purse.Short-circuiting the terminals may damage the adapter or the connecing object.

Leaving the adapter in hot or cold places,such as in a closed car in summer or winter conditions,will reduce the capacity and lifetime of the adapter pack.Always try to keep the adapter between 15 and 25 .A device with a hot or adapter may not work temporarily,even when the new adapter is fully charged.adapter performance is particularly limited in temperatures well below freezing.Do not dispose of batteries in a fire as they may explode.adapter may also explode if damaged.Dispose of batteries according to local regulations.Please recycle when possible.Do not dispose as household waste.