The Advantages and Disadvantages of a Cordless Drill Battery

Just in case you’re not sure what type of cordless drill batteries are needed for longer run times and are lighter in weight, this article will explain the advantages and disadvantages of NiCad (nickel cadium), NiMH (nickel metal hydride) and Li-Ion (lithium ion) batteries. Battery is one of the most important factors to consider when buying any portable devices and tools. Without a good battery to last the long hours of dedicated work, it limits the benefits of portability.

Advantages of NiCad Battery

It has longer recharge cycle life of up to 1000 cycles, slighter longer than NiMH batteries. NiCad batteries are the first battery introduced into a cordless drill. It is more robust to temperature that means it can run well regardless of weather conditions. NICad batteries have long shelf life and the lowest cost per charging cycle.

Disadvantages

It has its disadvantages. NiCad has memory effects. It can easily lose it ability to maintain full charge. One way to prevent it is to discharge it completely and recharge again. It is also not environmental friendly (toxic metals).

Advantages of NiMH Battery

NiMH batteries have higher energy density and therefore run longer than NiCad batteries. Lighter than NiCad batteries and carry less heavy metals seems to be more advantageous between both batteries.

Disadvantages

However, it is more sensitive to temperature and may not work below zero degrees or above forty degrees centigrade. If you live in tropical countries, you may have no problems using it but the shorter recharge life cycle than NiCad batteries will most probably force you to stay away from NiMH batteries.

Advantages of Li-Ion Battery

That is the choice if you have been using it in cordless drills. Li-Ion battery is the latest amongst the three types. The advantages far outweigh its disadvantages and many cordless drill manufactures started to use Li-Ion battery in newer models. Two factors certainly affect consumer’s buying decision – longer run times per charge and its weight. Li-Ion batteries have the most run times compared with the rest and it weighs much lighter amongst the three types of batteries. It does not have memory effect and not require to fully discharge to prolong battery life. In fact, it is recommended to partial charge and discharge more often to maintain if not prolongs its shelf life.

For power users who need to drill all day long certainly need more run times per charge to reduce changing battery too often. Lighter weight also means less stress on the wrist.

Disadvantages

However, the disadvantages of shorter shelf life and higher price might be the major drawback for conservative users. If you are a power user and use it almost on a daily basis, two to three years of consistent use is enough to retire the battery. The convenience that Li-Ion batteries provide is already worth the initial price.

In conclusion, the recommendation is to choose Li-Ion battery for cordless drills. Li-Ion batteries have long been used in cell phones and it is only later that cordless drill manufacturers started to catch up. In my opinion, latest technology always provides better advantages than disadvantages for consumers. If you have not already use Li-Ion battery operated cordless drill, it is time to make a change.  



Source by James Ma

Advantages and Disadvantages of Electric Bicycles

An electric bicycle is powered by a battery and is preferred and selected by more and more people nowadays. Many people would like to choose electric bikes rather than ordinary bikes or cars because electric bike is environmentally friendly and has many advantages. However, every coin has two sides. Electric bicycles also have some disadvantages.

Advantages

Electric bikes have a lot of advantages and in this article I want to state some of them.

  • It can help you save money.
  • Imagine that if you have an electric bicycle, you will do not need to buy expensive petrol or gasoline and a large garage to park your car. Besides, you need not to spend money on car repairs and other services. All these can save you a lot of money. Generally, an electric bike is very cheap when compared to cars.

  • You will not sweat when riding it.
  • When riding an electric bicycle, you will not have to put in much effort. So you will not be sweaty when you reach your destination. This advantage can be more obvious when summer comes or when you need to travel a long way.

  • It is quiet and safe.
  • Unlike cars and scooters which have noisy engines, electric cycle provides you a quiet surrounding because the motor on it is almost silent. Moreover, it can also offer you a controlled and safe riding experience.

Disadvantages

  • Battery costs
  • We all know that electric cycles are powered by batteries and all batteries have useful time. So when the battery on the bike gets old, we should buy a new one. However, the old batteries pollute the environment heavily and the new battery costs can be high.

  • Heavy to carry
  • Usually speaking, an electric bicycle is heavy and some cheaper ones may be heavier because they use lead acid batteries. So if the battery runs out on the way, you will feel difficult to pedal.

  • Battery recharge
  • You need to recharge the battery daily or very often and it always takes several hours for the battery to recharge fully. So before going somewhere, you should firstly make sure that the battery is full charged or you will have to pedal it.

Though there are some disadvantages of electric bicycles, the benefits far outweigh the disadvantages. There is no perfect vehicle and among all vehicles, electric bicycle is the most worthy one. Do not hesitate, choose an electric bike and change your way of life.



Source by Jeremy Liu

Advantages Of Online Recharge

Today, our telecom industry is growing with the great speed. The industry consists of operators such as Airtel, Vodafone, BSNL, Docomo, Idea and many more from where you can get the recharge for your prepaid connection. Online recharge has many advantages when compared to other sources of recharge. In the busy world of today no one has much time to stand in a queue to recharge their prepaid connections. Online recharge service is for peoples who do not have much time to stand in long queues to recharge their mobile. So, without disturbing your ongoing work you can recharge your prepaid connection.

With this facility you can recharge your prepaid connection very quickly. The total process of recharging the mobile services requires less than 10 seconds which saves your precious time. This service is much faster than other recharging options and is considered the best when you do not have much time to waste. People who often go outside for meeting can avail the benefits of online recharge because they can recharge their mobile anywhere and anytime with the help of system and net connection. Many discount offers and coupons are also provided by sites that provide the services of online recharge. So, this service is the best one to recharge your mobile. Many giants like rechargefreak.com/, paytm.com/, Rechargeitnow etc are present in this field who provide online recharge services. They all provide attractive recharge offers to their customers for recharge and the free coupons are also provided to customers for online shopping and other things. Recharge freak provided free coupons and free product as well to its customers.

Another benefit of this facility is that you can recharge your prepaid account from anywhere across the globe at anytime you want. Not just mobile other connections like DTH and Data Card are also recharged by these sites. Suppose at night your balance gets over then also you can easily recharge your phone with net banking, credit card or by debit card. This also applies on DTH services, when your balance is over you can recharge your DTH connection with the help of this service. Payment mode for this service is not cash instead you must have credit card, debit card or net banking facility. For online prepaid recharge, no additional charges are applied by sites which are providing these facilities.

Online recharge is a simple procedure all the steps and instruction are generally mentioned by the sites, which allows the new user to do recharge successfully for their prepaid connections. Hence, it is very easy, no need to worry. For online recharge you don’t have to pay more fees or additional charge and the biggest facility which one enjoys is 24*7 service.



Source by Raja Rana