Charging lithium batteries is a task that needs to be treated with caution. Although a 5V power adapter can be used to charge the lithium battery of a common level gauge, the risk is extremely high. This article will introduce the matters needing attention in lithium battery charging in detail to help you avoid unnecessary risks.

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The fully charged voltage of lithium battery is 4.2v, and the feed voltage is 2.75v V. Exceeding these two ranges may damage the battery and even cause deflagration. Therefore, you need to be extra careful when charging with a 5V power adapter.

Inferior quality

The quality of lithium battery of ordinary level meter is often poor, and there is no built-in charge and discharge protection board, so the charging voltage is limited by 4.2v power adapter. Therefore, when the battery is fully charged at 4.2v, continuing to charge with the 5V power adapter is likely to cause battery damage.

Select the charging method

In order to ensure your safety, please choose the charging method carefully to avoid unnecessary risks. If it is necessary to charge the lithium battery, it is recommended to use a professional charger to ensure that the charging voltage and current are within a safe range.