It is the chemistry and design that helps the lithium battery meet the high drains of many of today's devices. These powerful batteries are widely used as a laptop computer power source. Here are some tips to make your laptop lithium battery last longer.

Two way pagers are a substitute for cell phones. Owning a two way pager means you can both send and receive messages (words and numbers) from your pager therefore replacing other more expensive communication devices.

A two-way pager allows me to be able to engage in short conversations without having to fully engage in a conversation, stopping other things I'm doing, I could use a full keyboard function without a full-size keyboard, and I could read my e-mail without having to be at a full-size computer or plug into any other network.