There are many types of batteries for portable electronic devices, the most common of which include:
1. Lithium-ion batteries: characterized by small size, large capacity, light weight, high charging efficiency, and no memory effect, they are widely used in portable electronic devices such as smartphones, tablets, and laptops.
2. Nickel-metal hydride (Ni-MH) battery: Compared with nickel-cadmium (NiCd) batteries, NiMH batteries are more environmentally friendly, contain no mercury or cadmium, have relatively large capacity, and high charging efficiency. They are widely used in digital cameras, portable audio equipment, and other devices.
3. Lead-acid batteries: They are large, heavy, and have low capacity, but they have high stability and reliability and are often used in emergency power supplies, UPS power supplies, and other equipment.
4. Lithium polymer battery: Compared with lithium-ion batteries, lithium polymer batteries are smaller, lighter, and safer and more reliable, making them suitable for thinner portable electronic devices.
5. Nickel-cadmium (Ni-Cd) batteries: They have a small capacity and contain toxic substances, and have been gradually replaced by other batteries. They are currently mainly used in some older portable electronic devices.
The following safety requirements apply to portable electronic devices that use lithium batteries and battery packs:
1. Choose the appropriate battery type: Select the appropriate battery type according to product requirements, such as 18650, 26650, etc., and avoid using low-quality or counterfeit batteries.
2. Avoid overcharging and over-discharging: Use batteries or battery packs with overcharge and over-discharge protection to prevent overcharging and over-discharging. Also, always use the original manufacturer's charger; do not use incompatible chargers.
3. Avoid short circuits: Prevent battery short circuits during use, storage, and transportation. For example, avoid direct contact between the battery and metal parts, and use a protective cover.
4. Avoid high and low temperature environments: Avoid using the battery in high and low temperature environments, especially do not place the battery in direct sunlight or high temperature environments.
5. Avoid impact and squeezing: Avoid impact and squeezing of the battery. Do not forcibly disassemble or change the shape of the battery or throw it into fire when using it.
6. Properly dispose of used batteries: Avoid discarding batteries at will. Used batteries need to be sorted and disposed of in accordance with the requirements of the environmental protection department.
7. Regular maintenance: Regularly maintain the battery or battery pack, such as cleaning the battery interface and battery pack connectors, to ensure the normal use and safety of the product.
