How to care for the battery and camera of the digital camera

Digital cameras require batteries to maintain proper operation. Under normal circumstances, digital cameras can use dry batteries, alkaline zinc-manganese batteries, nickel-cadmium batteries, nickel-hydrogen batteries, lithium-ion batteries and lithium batteries as their power source.

Alkaline zinc-manganese battery

This kind of battery is the 5th battery that we can easily buy on the market. They have not been modified by special materials and technology. The digital camera using this battery is mostly the bottom product. Because the market has a wide range of sales, users do not have to worry about the price of this battery. However, because of the common technology, the power supply and endurance are far less than those of other batteries. Sometimes, its power is not enough to drive the start of a digital camera, and even affect digital cameras.

NiMH batteries

This type of battery is an alternative to early nickel-cadmium batteries, and nickel-hydrogen batteries have a more compelling advantage over nickel-cadmium batteries. It greatly reduces the "memory effect" in nickel-cadmium batteries, which makes the use of nickel-hydrogen batteries more convenient and the cycle life is longer (up to 1000 times). In addition, the nickel-hydrogen battery has the advantages of high capacitance, large depth of discharge, overcharge and overdischarge resistance, and short charging time. The most important thing is that nickel-metal hydride batteries no longer use toxic heavy metals as materials, which can eliminate their environmental pollution. At the same time, it is basically similar to the nickel-cadmium battery in terms of electrical characteristics, and can completely replace the nickel-cadmium battery in practical applications without any modification of the camera.

Of course, nickel-metal hydride batteries are not perfect, and they also have some shortcomings. Its high temperature characteristics are relatively poor. Under high temperature conditions above 45 degrees Celsius and low temperature below 0 degrees Celsius, NiMH batteries will not work properly, or even start the camera at all. In addition, the self-discharge rate of this battery is relatively high, it will be found that its power is significantly reduced after a period of storage, and there is also a slight memory effect of nickel-metal hydride batteries.

lithium battery

Lithium-ion batteries are relatively expensive, but they have the advantages of light weight, large capacity, and high energy density. Compared with nickel-metal hydride batteries, lithium-ion batteries are lighter and have an energy ratio of 60% higher. Because of this, the production and sales of lithium-ion batteries are gradually surpassing that of nickel-metal hydride batteries, making them one of the main batteries used in digital cameras. In addition, the lithium-ion battery has almost no "memory effect" and does not contain toxic substances, which is also an important reason for its wide application.

The technical status and performance of lithium-ion batteries and lithium batteries are relatively good, but the price is slightly higher, and the use is more complicated and complicated. Especially the charger of lithium-ion battery must be “dedicated”, it can not be charged with other batteries. Compatible. Alkaline zinc-manganese batteries, although low in unit price and affordable to consumers, have a short life span and long-term use makes it difficult for ordinary consumers to bear the cost. In contrast, nickel-cadmium batteries, nickel-metal hydride batteries in the manufacturing technology is more mature, more reasonable price of the battery.

If you are using a mismatched battery or don't pay attention to saving, the battery will run out when you haven't taken a few photos. The following methods can save battery usage: first, try to avoid unnecessary zoom operation; second, avoid frequent use of flash, flash is a large power consumer, we try to avoid using; third, it is best to use framing when adjusting the picture composition Instead of using an LCD. Because most digital cameras consume more power by turning on the LCD screen, turning it off can increase battery backup time by two or three times. Fourth, use the continuous shooting function as little as possible. The continuous shooting function of digital cameras mostly uses the built-in cache of the camera to temporarily save digital photos. If you use these caches frequently, you need a lot of power. Therefore, reducing the use of continuous shooting and motion picture shooting features can greatly help save power.