There are a lot of people will ask how can we judge the car battery is fully charged it? Here Lee Sheng Electronics Co. to introduce you to judge the new battery is fully charged Trilogy: (1) If the electrolyte "boiling" while bubbles, it indicates charging is completed. (2) measuring the size of a single cell battery voltage, if the voltage does not fluctuate within 3 seconds, up to 2.7V, it indicates that charging is complete. (3) to measure the relative density of the electrolyte, such as fluctuations in the density 3h longer battery charger, up to the maximum, then the charging is completed. Zhejiang Sheng Lee charger electronics company quality assurance, is your best choice. Charger is our indispensable part of life, especially in this era of electronic products are flooding the battery charger is very fitting, the charger is already a necessity for us, and just as the clothes and the food is just as important. Charger (charger) according to the operating frequency of the circuit design to offer sub-battery charger, can be divided into machine-frequency and high-frequency machine. Frequency machine based on traditional principles of analog circuit design, power devices inside the machine (such as transformers, inductors, capacitors, etc.) are larger 12v battery charger prices, there is generally a greater load at running a small noise, but the models strong anti-corrosion performance in harsh environmental conditions in the grid, reliability and stability are stronger than the high-frequency machine. Sheng Lee Electronics Company is a privately-owned enterprises set production, processing, distribution and wholesale of electronic products. Portable battery charger _ Lee Sheng Electronics Factory credible _ Fujian battery charger provided by Lee Sheng Yongkang Electronics Factory. Lee Sheng Yongkang Electronics Factory (www.ykshengli.net) Zhejiang Jinhua, a leader in electric car charger, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Lee Sheng Electronics Factory in leadership with the staff warmly welcome all inquiries negotiations to create Sheng Lee electronics factory a better future.