The fully charged voltage of a single NCM/NCA cell is 4.20 V. Formula for calculating the number of strings: Number of strings = Full-charge voltage of battery pack ÷ 4.20 V Example- 48 V battery pack: 48 ÷ 4.20 ≈ 12 strings (actual 12 × 4.20 = 50.4 V).- 60 V battery pack: 60 ÷ 4.20 ≈ 14 strings (actual 14 × 4.20 = 58.8 V). Remember: 21.0 V indicates a fully charged 5-string NCM battery pack (4.20 V × 5).

I. Company Overview Shenzhen Chengdian Xinsheng Technology Co., Ltd. is a high-tech enterprise specializing in the research and development, production, sales, and service of power supplies and chargers. With experienced R&D personnel who master core technologies in their respective fields, the company continuously innovates and upgrades its products. Adhering to stringent production standards and striving for excellence in quality, the company strives to create safe and reliable products.   II. Core Business - Power Supplies and Chargers: Offers industrial automation power supplies, LED driver power supplies, smart chargers, and more, supporting customized development. - 5G Communication Technology Services: Provides 5G base station power solutions and supporting communication equipment. Specialized Electronic Equipment Manufacturing: Capable ...

The core differences between pulse repair chargers and smart chargers lie in their operating principles, functional focus, and usage scenarios. This can be summarized as follows: - Pulse repair chargers = "battery massagers"—use high-frequency pulses to remove sulfur and restore capacity, suitable for maintaining older batteries;- Smart chargers = "battery stewards"—real-time monitoring and automatic adjustment of charging parameters, suitable for daily safe charging. I. Working Principle Comparison | Project | Pulse Repair Charger | Smart Charger || Core Method | High-Frequency Positive/Negative Pulse Current | Real-Time Sampling + MCU Algorithm || Target | Breaking up lead sulfate crystals and depolarizing | Precisely controlling voltage/current/temperature || Charging Phases | Periodic Pulse + Repair | Three-Stage Constant Current, ...