I could easily have spent a fortune replacing the motherboard, the memory, the processor etc when it all came down to 2 dollar battery. What's more is these batteries are easy to get. What you need is a CR2032 available at most hardware stores like home depot and I've even seen them sold in Safeways. Of course every reputable computer lithium facts store should stock them. Just check to make sure that your PC uses a CR2032 before you go to the shops!
Deterioration is a function of temperature and charge level. Don't make the mistake of storing the battery fully charged, as that is the state where it breaks the fastest due to heat. Charge it to take it out and put it like that on the back seat of your car avoid direct sunlight and preferably put the mini lithium facts notebook on a firm flat surface while operating it.
The price of an external laptop battery may vary from brand to brand. But they are quite affordable and very compact device. They can be recharged with an external charger so you don't have to look out for an electric supply to charge the external battery.
No. There will almost certainly be many people who have to go without a lithium bettery stock PS for Christmas despite being willing to pay the very high price Sony is asking. But, that's nothing new. Other consoles (including the Xbox 360) have been launched without an adequate number of units immediately available for sale.
The iPad 64gb comes with built in 802.11n (whatever the heck that means right?) and it will automatically, scour, assimilate and hook into the fastest wireless networks available. Clever little thing that it is.
The bottom line, be gentle to your lithium-ion batteries. If you excessively charge the battery, with high voltages, and heavy load conditions, it will shorten your battery's life. It's best to charge at a slower rate.