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Is charging voltage of a lithium battery about 0.5V higher than its rated input voltage harmful?

By.Johns 2024-08-03 15:33:01 Share on facebook Share on Google Share on Instagram Share on Pinterest Share on Twitter Share on Tumblr Share on WhatsApp Share on Telegram Share on Reddit Visit our Instagram

Introduction Is charging voltage of a lithium battery about 0.5V higher than its rated input voltage harmful? When charging a lithium battery, it is first charged with a constant current, and when it reaches the final voltage, it switches to constant voltage charging.

Is charging voltage of a lithium battery about 0.5V higher than its rated input voltage harmful?

When charging lithium batteries, they are first charged with constant current and then switched to constant voltage charging when the termination voltage is reached. The load requirements are very high and the termination voltage accuracy must be less than 1%. For example, 4.2 V is within ±0.042 V. Large overload can cause permanent damage. Therefore, a 4.2V charger cannot be used on a 4.1V battery.

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