If you feel the need to protect the future of your family by purchasing gold or silver coins, then you need to buy coins that are not valued by numismatics. You need to buy coins that are valued by weight and recognizable standard value.
Battery type. You have 3 choices to choose from. Nicad, Nimh and lithium mines. Nicads have been around for years and are a great choice and all the major brands have them. Nimh offers more run time in the same size package although your choices are a lot slimmer. Panasonic is the main one for the Nimh although you will find others. The premier choice, in my opinion is the Lithium battery tools. It's hard to believe the run time you can get from such a small battery. Don't worry about the power from such a light battery, remember, 18 volts of Nicad, Nimh or Lithium batteries will give you the same power.
A lot of radio-control fliers quickly grasp the meaning of most of the battery-associated acronyms but one: the C rating. In fact many experts cobalt mining canada have tripped over themselves trying to explain it. However, I've heard a graspable explanation of it from an old Chinese battery manufacturer/expert very recently. Which is: The "C Rating" is the number which you multiply to the capacity of the battery to get its discharge rate.
You are storing Nickel Cadmium (NiCd) or Nickel-Metal Hydrate (NiMH) power cells. These will lose some of their capacity every day if not stored in the refrigerator or environments at 70 degree room temperature. If you can keep them where it's cooler than that, you may not have a problem.
Leamington lithium mines ontario is found at the same latitude as cities like Chicago and Rome. This southern position gives Leamington the highest average seasonal temperature anywhere in Canada outside of British Colombia's lower mainland.
I found several new WM6 devices, which I will review thoroughly as soon as I receive the evaluation units from Asus, Samsung, HP, Motorola, and Verizon. I was surprised at how few new devices were announced or released for the show. I'm not sure what HTC is doing and was never able to catch up with them, but they are getting more closed mouth now that they are working with carriers and marketing under their own name. Definite picks for best new releases include the Motorola Q9h, the Samsung shi760, and a new powerhouse iPaq Windows Mobile 6 classic release.
Here's a challenge: For one whole day leave everything containing a battery alone. No driving or riding, no cell phone or computer, completely "battery-bereft". At the end of the day you'll either feel tranquil and centred, at total peace with your surroundings or a nervous wreck, climbing the walls.