Lithium ion battery is relatively expensive, but it has the advantages of light weight, large capacity and large energy density. Compared with Nickel–metal hydride battery, lithium ion battery is relatively light, but its energy ratio is 60% higher. Because of this, the production and sales of lithium-ion batteries are gradually surpassing that of Nickel–metal hydride battery and becoming one of the main batteries used in digital cameras. In addition, lithium-ion batteries have the advantages of almost no "memory effect" and no toxic substances, which are also important reasons for their widespread application.

　　The technical status and performance of lithium-ion batteries and lithium-ion batteries are relatively good, but the price is slightly higher, and they are also more exquisite and complex to use. Especially, the charger of lithium-ion batteries must be "dedicated" and cannot be compatible with other battery chargers. Alkaline zinc manganese batteries, although priced low and affordable for consumers, have a short lifespan and long-term use, making it difficult for ordinary consumers to bear the cost. In contrast, cadmium nickel batteries and hydrogen nickel batteries are more mature in manufacturing technology and have more reasonable prices.

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