How to distinguish refurbished batteries? 1, don't be tempted by low prices. 2, learn to look at the outer packaging, 3, check the safety label. 4, the shell has a bulge can not be bought. 5. The thickness of the battery case has a doorway. 6. Certificate and quality assurance card are the marks of new batteries. 7. It is very useful to look at the wiring holes of the terminals. 8. Know the brand and look at the trademark.

Buy batteries 1, battery products with "National Inspection Exemption" and "China Famous Brand" and local famous brand battery products. The quality of these products is guaranteed. 2, according to the requirements of electrical appliances, choose the appropriate battery type and size, and according to the size and characteristics of electrical power consumption, choose and buy batteries suitable for electrical appliances. 3. Pay attention to the production date and shelf life of the battery, and buy a battery (new battery) with good performance. 4, pay attention to check the appearance of the battery, should buy beautifully packaged, neat appearance, clean, no signs of leakage of battery. 5, pay attention to the battery logo, battery trademark should indicate the manufacturer's name, battery polarity, battery model, nominal voltage, trademark, etc. ; Sales packaging (such as 2 shrink films or 4 shrink films, or tag) should have Chinese address, production date and shelf life, or indicate the effective period of the shelf life and the number of the implementation standard (generally GB/T GB/T×××××××××). Don't buy products without Chinese factory name, production date and shelf life, shelf life and implementation standards. When buying alkaline Zn-Mn batteries, it depends on whether the model has the words alkaline or LR. 6. Because the mercury in the battery is harmful to the environment, in order to protect the environment, batteries marked with the words "no mercury", "0% mercury" and "no added mercury" should be selected when purchasing.