Selasa, 15 November 2011

How to buy a Digital Camera Battery

By Jason Frost


Maybe the biggest problem that most customers face when buying a digital camera is that the battery lifespan is often very short. Alkaline batteries are drained within minutes by most cameras. The reason behind that's that cameras pull lots of energy quickly from the battery and alkaline batteries aren't designed for such quick bursts of power. For those who have digicams that accept AA type batteries I recommend using Nickel Metal Hydride batteries. They work fine with electronic cameras, are chargeable up to 1000 times, and have no issues with a memory effect like Nickel Cadmium batteries do. For everyone else most cameras use LI batteries.

Lithium/ion batteries are also chargeable just like Nickel Metal Hydride, but they are more limited on the quantity of times that they can be recharged. Most batteries with high quality cells will hold up to 150 recharges. Lithium Ion batteries also age, the chemistry that permits them to store power starts to break down inside 3 years. So you shouldn't expect your digicam batteries to last longer than about 3 years. So why do almost all cameras use Li-Ion batteries if they're inferior to Nickel Metal Hydride?

Li-ion Batteries are lighter than Nickel Metal Hydride batteries for the energy that they store. That suggests that a smaller lighter battery can be employed to power the same camera. The second reason is straightforward economics. Electronic Camera corporations make the best bit of their cash selling accessories for their own cameras. If they can sell a brand battery for $60 that costs them $6 to make that's a very good return on investment.

Almost as soon as Li-Ion batteries were used in digicams 3rd party batteries were sold as a universal alternative. The price of these batteries is a lot less, but there are a couple of issues. The least expensive of these third party batteries customarily use bad quality Li-ion cells. This implies that they hold less charge and have an exceedingly short lifetime. When it comes to purchasing 3rd party batteries as an expert I recommend buying from SterlingTEK. They are in the medium price range and the quality is comparable to Nikon, Canon, Sony, etc..

Some of the most recent Li-ion digicam batteries also include smart chips. If you take a look for example at the Canon 7d Battery , which uses a LP-E6 battery n0I8LgRU. You'll find that the camera uses an onboard chip to gauge the amount of energy that is left in the battery. Some camera makers are now even obstructing the employment of 3rd party batteries by employing these chips. That's a different reason to avoid dust cheap 3rd party batteries, they regularly do not include the smart chips and will not work with all camera models especially the most recent ones.




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