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21700 battery cell annual summary, you will understand it in seconds after reading this article
by admin on 24-01-27
Preface In recent years, energy storage has become a development issue in the field of new energy. In order to increase the energy density of battery packs and reduce the number of batteries in the battery pack, many new energy companies have launched 21700 model lithium-ion power batteries with ...
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Popular science: What is whole-house DC?
by admin on 23-12-23
PREFACE People have come a long way from electricity being discovered to being widely used as “electricity” and “electric energy”. One of the most striking ones is the “route dispute” between AC and DC. The protagonists are two contemporary geniuses, Edison and...
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How to choose a track socket and install the track socket?
by admin on 23-11-27
Five key points when choosing a track socket. 1. Consider power Ensure that the power of each appliance is less than that of a single track adapter and does not exceed the total power of the socket when used at the same time to ensure electrical safety. Therefore, it is very important to choose...
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Interpretation of JD Double Eleven 3C Accessory Sales Report
by admin on 23-11-19
Interpretation of JD Double Eleven 3C accessory battle report, high power fast charging with impressive growth rate. JD 3C Accessories’ Double Eleven Battle Report announced that brands such as Green Alliance, Bull, and Beisi occupy the top of the sales ranking, with Green Alliance winning ...
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UL 1449 Surge Protector Standard Update: New Test Requirements for Wet Environment Applications
by admin on 23-05-09
Learn about the update of the UL 1449 Surge Protective Devices (SPDs) standard, adding test requirements for products in humid environments, mainly using constant temperature and humidity tests. Learn what a surge protector is, and what a wet environment is. Surge protectors (Surge Protective Dev...
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Rockchip launched a new fast charging protocol chip RK838, with high constant current accuracy, ultra-low standby power consumption, and passed UFCS certification
by admin on 23-05-09
Foreword The protocol chip is an indispensable and important part of the charger. It is responsible for communicating with the connected device, which is equivalent to a bridge connecting the device. The stability of the protocol chip plays a decisive role in the experience and reliability of fas...
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The European Union issued a new directive EU (2022/2380) to amend the standardization of the charger interface
by admin on 23-05-09
On November 23, 2022, the European Union issued Directive EU (2022/2380) to supplement the relevant requirements of Directive 2014/53/EU on charging communication protocols, charging interfaces, and information to be provided to consumers. The directive requires that small and medium-sized porta...
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China national mandatory standard GB 31241-2022 was promulgated and officially implemented on January 1, 2024
by admin on 23-05-08
On December 29, 2022, the State Administration for Market Regulation (Standardization Administration of the People’s Republic of China) issued the National Standard Announcement of the People’s Republic of China GB 31241-2022 “Safety Technical Specifications for Lithium-ion Batt...
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The 133rd Canton Fair closed, with a total of over 2.9 million visitors and an on-site export turnover of US$21.69 billion
by admin on 23-05-08
The 133rd Canton Fair, which resumed offline exhibitions, closed on May 5. A reporter from Nandu Bay Finance Agency learned from the Canton Fair that the on-site export turnover of this Canton Fair was 21.69 billion US dollars. From April 15 to May 4, the online export turnover reached US$3.42 b...
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