How to calculate the number of strings for ternary lithium batteries

作者: admin
发布于: 2025-10-24 14:13
分类: Industry News News

 

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).

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