Lithium ion batteries are a great thing to buy if you want to cut your battery costs. They are not a new invention, they were first made in 1912. there are a huge amount to different batteries available from the smallest ones to some really big industrial type. For the amount of power that they are able to store. Most other types of power storage units are much bigger than Lithium ion batteries. The other main batteries that could be used for the same thing are much heavier. Lithium ion batteries high capacity is due to the material that they are made of. Lithium ion batteries do not suffer from a high discharge rate and are very practical for storing energy efficiently as well.
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.
Why is this important? If you have a relatively new PC the only problem you will get are error messages relating to the clock on start up. No big deal. If your PC is older then a low battery could be a nightmare. I had a PC which once lithium mines ontario every few months refused to boot. Rather than take the PC in for repair or start replacing parts myself the first thing I did was look at the BIOS settings. It was soon obvious that the BIOS settings were corrupt (wrong bus speed). I put a volt meter on the battery and sure enough it was reading 2.2 volts.
Much of the response to the threat of Giardia is overkill. A favorite scholarly article on Giardia was written by Robert L. Rockwell, PhD. It's titled, Giardia Lamblia and Giardiasis, With Particular Attention to the Sierra Nevada. Bob Rockwell is an active mountaineer who made his first trip into the Sierra Nevada in 1952 to climb Mt. Whitney, and he repeats this climb several times annually. He has a bachelor's degree in Physics from UC-Berkeley, and a PhD in Aeronautical and Astronautical Engineering (Biomechanics) from Stanford.
The weakest aspect of any smart phone would be battery life. You need to know the extent of your Lithium battery stocks Ion or suffer the consequences at the end of the sale. Most manufacturers offer some guidance on this department but only to the point they are most comfortable to share. What they wouldn't share to you is that you should never recharge your phone. You pick up the phone; saw that it is just around 30%. That is OK, leave it as it is. You juice it up fast, the device will not recharge as efficiently once you do it again. You need to drain the battery first from the stock power and then do the recharge.
In case you are using new nickel-metal hydride (NiMH) battery, remember you should not charge the battery for too long or it will overcharge it and end up shortening the life of the battery. However, it is important to charge and discharge the battery three times just like the Lithium mines Ontario-ion battery to ensure that it has a long a life.
If your drill didn't come with a second battery (my cordless Bosch drill did) than you will either have to purchase a second battery or take a short break until your battery is ready.
Next on the list is our gas weed wackers little brother the cordless weed wacker. Cordless weed wackers are great for smaller yards and the environmentally friendly. When looking at cordless string trimmers, you can't miss out on WORX. WORX products are known for being easy to use and operate by home owners. Without any hassle of using gas and oil, the WORX GT WG151 18-Volt Cordless Electric Lithium-Ion String Trimmer/Edger. This tool is easy to use right out the box, and does excellent finish work on trimming your yard. Also the built in edger capability makes this the best cordless weed eater of 2010.