Said that the battery of a long history, the oldest VGP-BPL8 VGP-BPL8A battery in the world originated 2000 years ago, this was called “Baghdad”, the batteries, still preserved in the museum of Baghdad (today? N ‘Have they not blown?).
Drums There are two commonly used parameters, respectively, voltage and capacity. Voltage depends mainly on positive and negative materials. Ordinary dry cells, are voltage 1.5 V, while the voltage of the rechargeable battery 1.2V. The capacity is the capacity of each power bar, with the discharge current and discharge time of the product, said. For example, a capacity of 500mAh battery means the battery 500mA discharge current is able to use 1 hour. Obviously, if the discharge current to 250mA, you can use two hours, and so on.
Commonly used batteries are manganese batteries, alkaline, nickel-cadmium batteries, laminated batteries, button cells. Mn-Zn batteries, nominal voltage of 1.5 V, inexpensive, but the discharge still poor, not suitable for high discharge current, and can charge only applies to some small electronic circuits today. Manganese dry battery has a strange feature, the intermittent discharge time and the continuous discharge time is longer, it is a recipe for using ordinary Ah F4812A HSTNN-lB31 battery.
Alkaline batteries, the nominal voltage is 1.5V, the electrolyte is a water-soluble potassium hydroxide liquid, large volume, can be large current discharge characteristics are superior to all aspects of manganese dry batteries. In practice, the more we need high current circuit, alkaline batteries, the better they can play a role. Alkaline WALKMAN to your taste in the band used, and their longer life expectancy than the average number of batteries in the camera flash can not be separated using nickel, alkaline batteries is the best choice . Only the more expensive alkaline batteries.
Most cases, the alkaline battery, the words “Free” in Chinese or English, but in fact, alkaline batteries can be charged and the charging up dozens of times. Alkaline batteries can be taken only small current charging method to 50mA load current is appropriate, and most of the feeder load current was relatively large, the results of the liquid in the battery, equipment corrosion. A representative alkaline LR20, LR6 representative on the 5th.
Common manganese dry batteries, R alone, as the model, a common R6P is the fifth of battery capacity. Bitbaby you want to use the “white elephant” alkaline batteries equipped with branded appliances. Dell Latitude D820 battery Dell Latitude X1 battery
Many calculators are used on silicon photovoltaic solar cells, it is light to the touch when the battery. Solar cells are rectangular sheet, and also the transistor type flat circle. 0.5V General each can produce the voltage necessary for several chipsets to increase the tension, several sets of parallel to increase the output current. And in general, and button batteries in parallel to conserve energy stored up, again a small charge.
Battery nickel is also known to everyone, without further ado. According Bitbaby know, the little Japanese back in the early 90s on the Prohibition of the battery compartment in the local production of nickel, and to protect their environment. Now the market is so much JAPAN compartment nickel comes from? Now, promoting the use of nickel-metal hydride PA3399U-2BRS PA3421U-1BRS battery, high capacity and no memory effect, but also more environmentally friendly. Ah cadmium is harmful!