Collection: Power banks

Yes, many solar panels are compatible with power banks and have USB ports that can be connected directly to the power bank. When there is enough sunlight, the power bank is charged, so you always have a power reserve.

The capacity of a power bank is measured in milliampere hours (mAh). For simple applications such as charging a smartphone, 5,000 to 10,000 mAh is sufficient. For longer use or charging multiple devices at the same time, power banks with 20,000 mAh or more are ideal.

Batteries and power banks lose capacity over time and should be replaced when the charging cycles decrease significantly or the battery life is greatly reduced. The lifespan of lithium-ion batteries is usually between 2-5 years, depending on care and use.