Monday, August 31, 2015

All about Batteries- Sizes And Types.

To put it simply so that even a layman can understand, a battery is used as a type of device that is used to store energy, making it available for use in an electrical form. It consists of one or even more cells.

History of battery:
It may surprise you but Baghdad Batteries are thought to be the first known in history, dating back from sometime between the years of 250 BCE and 640 BCE!

Batteries can be divided into two main categories, rechargeable batteries and non-rechargeable batteries.

Disposable batteries are also known as primary cells. They are intended for a one time use only, to be used until the chemical changes used to induce its electrical current supply have been finished. Their common usages include smaller, more portable devices that have either a low current drain or are used away from any alternative power source.

Rechargeable batteries, also known as secondary cells, have a longer usage life since they can be recharged after their power has been drained. You can do so by applying an externally supplied electrical current. This causes a reversal in the chemical changes that occur during the battery’s use. These devices used to do this are commonly known as rechargers or chargers.

The ‘wet cell,’ or lead-acid, battery is the oldest form of the rechargeable battery that is still in today’s use. This battery contains a liquid found in an unsealed container that requires the battery to be kept in an upright position. The area in which it is used must be well-ventilated so as not to cause the ventilated, hydrogen gas to display its explosive qualities.

The lead-acid battery is quite heavy, although its cost to manufacture is low and the high surge content levels allow it to be a commonly used battery in places where its weight and handling ease are not of any concern.

The most common form of a lead-acid battery is the car battery.

A gel battery is known to be an expensive lead-acid battery type, containing a semi-solid electrolyte that is used to prevent spillage.

The portable types are considered to be ‘dry cells.’ They are sealed units that are useful in appliances such as cell phones and laptop computers. These types of cells also include, nickel-cadmium or NiCd, nickel metal hydride or NiMH, and lithium-ion or Li-Ion, listed in the order of their increasing power density and also their cost.

Both disposable batteries and rechargeable batteries come in various standard sizes. This is so they can easily be used in a wider amount of appliances. The most commonly known types of batteries are the A-series, including A, AA, AAA, and AAAA.  There are many, many more less common battery types, and their usages vary greatly.

Tuesday, August 11, 2015

Vast resources for discount coupons.

The wisest advice our forefathers gave us is: Money saved is money earned.

While there are several ways to save money such as not buying something that we can live without, buying online and comparison shopping, we can save real big money by making use discounts offered by thousands of online shops.

When we buy online, we either directly open our preferred shopping web site such as or do a comparison shopping by looking for the same item we want to purchase in several websites. This is a sure fire way to save money.

While doing a comparison shopping, we might spot discount offers boldly displayed in some of the websites. If we can make use of such discount coupons, we could save enough to pay for our annual car insurance or a monthly mortgage payment! Yes, the savings could be as high as that much!

We wish there is some way that we could get notified of announcements of discounts offered websites. It is a genuine wish; there is nothing wrong in it. Only smart people wish like that.

I know of one Jared Moss. He maintains a website exclusively for publishing discount offers announced by several leading online stores. In fact, I even saw my favorite Shari’s Berries offer up to 15% discount. If you don’t know Shari’s Berries, it is where you can get the most beautiful and the tastiest chocolates in the world.

Jared Moss’s web site is called “Coupon Audit”. He publishes all the discount offers offered by various online shops and arranged it under several categories that include:
Home & Garden              
Musical Instruments      
Office Supplies
Party Supplies  
Sporting Goods

Similarly, one can shop by the name of the store arranged alphabetically. Now, don’t ask me to list all the stores here. It could run to several pages. I noticed big names that include Lacoste, Spencers and so on.

Overall, I believe can be your personal money saver.