March 28, 2025
1. Recommended channels for purchasing 18650 batteries
1. E-commerce platforms
• Taobao/JD.com: Suitable for individual users, with transparent prices and rich categories. The price of a new battery is about 5-50 yuan, and it may be lower during second-hand or promotional periods.
• Alibaba Wholesale: Suitable for bulk purchases, with lower prices (such as 3-15 yuan per battery), but you need to be careful to select reputable merchants.
2. Physical stores
• Electronic markets/specialty stores: On-site inspection is available, suitable for users with high quality requirements, but the prices are usually higher than online.
• Official brand channels: Brand stores such as Panasonic and Samsung provide original batteries with guaranteed quality but higher prices.
3. Professional suppliers and manufacturers
• Directly contact lithium battery manufacturers (such as Guangdong Honghaosheng, Shenzhen Lianheng Electronics, etc.), and you can customize the capacity (such as 2600-6800mAh) and use (such as energy storage, power equipment).
2. How to choose genuine 18650 batteries?
1. Check the packaging and logo
• The genuine packaging has brand trademarks, anti-counterfeiting labels and batch numbers, which can be verified by scanning the code on the official website.
• Avoid three-no products (no brand, no parameters, no protection circuit).
2. Check battery parameters
• Capacity: Select according to device requirements (such as 2600mAh for flashlights, 6800mAh for energy storage).
• Protection circuit: Batteries with protection boards can prevent overcharging and over-discharging, and are safer.
3. Price and evaluation reference
• Be wary of products that are far below the market price (such as less than 3 yuan per cell), which may pose safety hazards.
• Refer to other user reviews and give priority to high-rated merchants.
III. Safe use and precautions
1. Avoid extreme environments
• Keep away from high temperature and humid environments during storage, and charge regularly to prevent aging.
2. Standard operation
• Avoid mixing batteries of different brands or capacities to prevent short circuits or explosions.
• Use the original charger. Poor quality chargers may damage the battery or cause danger.
3. Recycling and disposal
• Used batteries must be recycled by professional organizations and cannot be discarded at will.
