Cordless Drills are wonderful tools. Almost everybody from professionals to home improvement DIY hobbyists use them. When this tool stops working it's a nightmare because the work is interrupted. And oftentimes the problem is that the batteries are no good anymore.
The basic rule of getting a replacement battery is that it should have the same voltage as the original. An 18V drill cannot run on a 12V battery. It can only run on a 18V battery. The other thing is that the physical packaging of a battery can be different from company to company. A 12V Ryobi battery may not fit into a 12V Makita cordless drill unless the battery has the right physical dimensions. So make sure the replacement battery looks the same as the old one before you order it. Also, if you are looking for a replacement battery of the same voltage rating and by the same company, know that battery technology is changing rapidly. An 18V lithium-ion battery has a different physical packaging than a NiCad 18V battery.
Tesla Roadster first started selling in 2008. It has a price tag of $111,000, it is a two-seater sports car. It is based on the Lotus Elise with a fiberglass body. This car is a rocket, it can accelerate from zero to 60 in under four seconds. It has a range of 245 miles with a massive 53-kilowatt-hour battery pack. Full charge takes 3.5 hours on a proprietary 240-Volt 70 amp charger. It has a very stiff and jarring ride with a very basic interior. It is awkward climbing into the cockpit because of the tall wide sill. The loud battery-cooling fans emit a constant lithium stock roar behind you. Tesla is developing a lower cost $50,000+ model S sedan expected to be released in 2012.
One thing that can cause that whole problem to be avoided is to keep spare laptop batteries. This allows one to be charged while the other is being used. This makes it an excellent alternative for people who are going on long trips, or are going to be in long meetings and won't be able to charge their battery. It just takes a moment to change out one battery for the other and the laptop is ready to go for another few hours.
Obviously, ICE are powered by the gasoline you buy when you fill up at a gas station. The electric motor/generator is powered by a large (and by large, I mean large and heavy) Lithium battery stocks pack. Most hybrids on the road today have large Nickel-Metal Hydride (NiMH) battery packs somewhere near the trunk, or under the seats. (Read about the Lexus Hybrid battery pack).
Now yes, it depends on how you're using it. But the Apple creators say it will play movies solidly for hours for example before the Lithium mines Ontario iPad battery says feed me".
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 store should stock them. Just check to make sure that your PC uses a CR2032 before you go to the shops!
Compare the prices of regular cellphone batteries to cheap cellphone batteries and you will realize that you definitely got a good deal. Just have these batteries tested before buying them. See if these are compatible to your cellphone.