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In general there are three kinds of batteries for us to  use: Nickel-chromium batteries;Ni-MH battery; Lithium battery. they are generally expressed as: Ni-Cd NI-CD, Ni-MH NI-MH, Lithium-Ion battery LI,such as Sony NP-BG1 .

Then how we can know them from others? In general we can distinguish them  from below some points :

1. To distinguish from the battery identity , lithium Digital Camera Battery is LI, lithium-ion battery is LI-ION.
2. Another distinction is the number of charge cycles. The number of ordinary rechargeable lithium to only 400-600 times, specially modified products, but 800 times,is generally scrapped after two years, while Ni-MH Camcorder Battery can charge much more than the lithium batteries,, usually 700 or more, good quality battery can charge and discharge 1200 times, Ni-MH battery life is more longer than lithium.
3. the last difference is the place of the origin after  battery materials, the origin of the general cell batteries is in Japan, South Korea, mainland China and Taiwan Province, in particular, mostly in Japan. The more well-known is Japan's Sanyo (Sanyo), South Korea's LG, Samsung, and so on, the Sanyo DB-L20 battery I useed is produced in Japanese.

Battery is made from the batteries, generally people are talking about 4Cell, 6Cell,it means the number of batteries within the battery, such batteries readily are  available in the market. prices generally ranging from 10-20 yuan(such as Samsung SBL-1974from South Korea and Cannon BP-2112 from China ).China,Samsung ,and Taiwan Province of China  are mostly based on  in processing ,and the core of battery is produced in Japan . In the next-generation cell batteries, some already do not use such a garden-shaped batteries, but do  a lithium polymer block to get greater power and smaller size.

Now that the price of the original equipment batteries is very expensive in market, it is around 1000-1500 in general, so for extending battery life,some of my friends started to replace the battery with Batteries batteries. it is possible in Theory , but in fact it is not .the reason is as follow :

1. Due to reasons in process, the batteries are generally used the ultrasonic welding, there is no gap,and  it is difficult to apart, even if the hardware is also very difficult to disassemble a close, and some camcorder batteries ,such as Sony NP-77 .
2. because of the internal protection circuit in battery, the event of the internal temperature is too high,it  will automatically cut off to protective battery, the piece of the circuit are damaged when replacing the battery,consequences would be unthinkable.

So I still do not recommend to replace batteriesby yourself, even if the need to be replaced ,you should look for professional and technical personnel to assist the replacement.

 

 

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