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 kobalt minen store should stock them. Just check to make sure that your PC uses a CR2032 before you go to the shops!
It isn't always possible to be near an outlet to keep a charger running. A laptop is supposed to be portable. But a user may still need to be on their computer lithium facts more than just or hours their batteries allow them. That can turn into a real problem if the person can't keep their computer running because its battery just died.
I spent a few days looking over the internet for a decent camera that would fit an amateur photographer like myself. I decided to go with the Canon EOS 1000D.
Avoid using replacement that has been on lithium bettery stock for a while. During storage the battery can lose much of its capacity through internal resistance, which damages it and lowers the maximum capacity.
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.
For jobs where the batteries are required to be light weight as well as being reusable, then lithium batteries are ideal. But if a battery is needed to be very reliable or to remain unused for a long time then they might not be the right batteries for it.