Electricity meters are gradually becoming more intelligent, and online viewing of electricity consumption information has replaced the traditional method of door-to-door collection of electricity bills. This requires that data can be saved and displayed for a long time. Nowadays, most electricity meters use various batteries to provide power to the clock chip and power outage protection. By studying the characteristics of supercapacitors, using supercapacitors can fully achieve this function and has more advantages than using batteries.

　　超级电容与电池进行比较，有如下一些明显特性：

　　Compared with batteries, supercapacitors have the following obvious characteristics:

　　1、超低串联等效电阻（ESR），功率密度(Power Density)是锂离子电池的数十倍以上，适合大电流放电。

　　Ultra low series equivalent resistance (ESR) and power density (Power Density) are tens of times higher than lithium-ion batteries, suitable for high current discharge.

　　2、超长寿命，充放电大于50万次，是锂离子电池的500倍，是镍氢和镍镉电池的1000倍，如果对超级电容每天充放电20次，连续使用可达68年。

　　Ultra long lifespan, charging and discharging more than 500000 times, which is 500 times that of lithium-ion batteries and 1000 times that of nickel hydrogen and nickel cadmium batteries. If supercapacitors are charged and discharged 20 times a day, they can be used continuously for up to 68 years.

　　3、可以大电流充电，充放电时间短，对充电电路要求简单，无记忆效应，超级电容器充电是双电层充放电的物理过程或是电极物质表面的快速、可逆的化学过程，可采用大电流充电，能在几十秒到数分钟内完成充电过程，是真正意义上的快速充电。

　　Supercapacitor charging can be carried out with high current, short charging and discharging time, simple charging circuit requirements, and no memory effect. Supercapacitor charging is a physical process of double-layer charging and discharging or a fast and reversible chemical process on the surface of electrode material. High current charging can be used, and the charging process can be completed within tens of seconds to minutes, which is truly fast charging.

　　而蓄电池则需要数小时完成充电，采用快速充电也需要几十分钟。

　　And the battery takes several hours to complete charging, and using fast charging also takes dozens of minutes.

　　4、温度范围宽-40～+70℃。

　　The temperature range is wide from -40 to+70 ℃.

　　5、体积小，外形紧凑，便于安装，节省空间，免维护，可密封。

　　Small in size, compact in shape, easy to install, space saving, maintenance free, and sealable.

　　6、可以在完全放电状态下存储，而过度放电对许多充电电池都是有害的；

　　It can be stored in a fully discharged state, while excessive discharge is harmful to many rechargeable batteries;

　　7、使用安全、方便、绿色环保对环境无害。

　　Safe, convenient, environmentally friendly, and environmentally friendly to use.

　　正因为智能电表有着以上的优势，未来其应用领域也会更加广泛，工业用电、智能建筑用电、智能商业用电、智能居民用电等各种细分市场上向更专业、更经济的智能用电产品及系统解决方案的方向发展。

　　Because smart meters have the above advantages, their application fields will also be more extensive in the future. Various sub markets such as industrial electricity, smart building electricity, smart commercial electricity, and smart residential electricity will develop towards more professional and economical smart electricity products and system solutions.