How long does it take to charge a device with the SBS TESOLARCHG21W Portable Solar Charger 21W?

[Ramona]

Charging time with the SBS TESOLARCHG21W Portable Solar Charger 21W depends on factors like sunlight strength, your device's battery capacity, and charging efficiency. This solar charger offers a total output of 2 x 5V D.C. - 2.1A, delivering a maximum of 2.1A at 5V to each connected device. To estimate charging time, use this formula: Charging Time = Battery Capacity (in mAh) / Charging Current (in mA). For instance, charging a device with a 3000mAh battery using the solar charger (2100mA) would take approximately 1.43 hours (3000mAh / 2100mA = 1.43 hours). Keep in mind that this is an estimate; actual charging times may differ. For precise charging details and device compatibility, consult your device's user manual.