If you're going to purchase a cordless tool, then you should really think about getting one with Lithium ion batteries. They cost more, and it's easy to think you could just buy a cheaper model and get a spare battery, but it's not the same. Lithium ion batteries are a true hassle free solution.
 

The ICF-C318 has a nice sleek finish of white gloss, and its compact design is beautifully crafted to match any interior without taking up too much space. It's very handy and easy to use, and with the dimensions of 155 x 82.8 x 151.5mm, you won't have any problems fitting it on your bedside table with the lamp, a bottle of wine, and your favorite pocket book. It's also extremely lightweight with a mere weight of 1.2 pounds, easy enough to carry to different rooms, and even to different places if you're out for travel. However, it does depend on a power supply, but the lithium stocks copyright battery back-up serves great as a savior for power outages and plug problems.

The processor goes up to 75-85C while under pressure but rarely dips below 40C when idle. Everything else is a bit cooler of course, but 40C in the computer case is rather common even with good air-flow. If you plan on using your notebook from the charger, remove the battery first left at 40% charge. Use an air-tight plastic bag and put lithium facts it into the fridge. Do not freeze.

OLithium Ion (Li-Ion) - This was the latest battery technology before lithium polymer. They have a higher power density than NiMh and NiCd batteries. Li-Ion batteries generally come standard with most phones. For most people, this battery technology represents the best combination of size, capacity, and value. These types of batteries don't suffer from the poor memory effect and can be recharged anytime.

Also keep in mind that when your iPod mini battery does die, it requires a proper funeral inside a proper container. No you don't need to buy a casket and a plot but you do need to adhere to local lithium bettery stock laws when it comes to battery disposal.

Now you want to discharge the battery. If you disable the hibernation setting or anything else that might make the computer go into power saving mode, it would be better. Let the computer run until it shuts down due to loss of battery power, then turn it back on.

The thing to realize about any battery is it does have a measurable lifespan and efforts to extend it will help but not stop the eventual demise. So the number one thing that you can do to extend the life of any of the newer lithium batteries is always take it out if you are running on DC power to lessen the heat impact. Whenever buying any replacement battery, always check the manufacture date and try to find the newest one available.