Why choose this solar portable charger?
✔ 20000mAh powerful enough to juice up your phone for several times.
✔ Support most USB devices device charging.
✔ 3.1A (max) outputs let you 3X faster power up your devices.
✔ Get your recharge covered by providing both USB inputs and sunlight.
✔ Serves as not only an on-the-go charger but a handy flashlight in the dark.

USB and Solar Charging 2-in-1
You can fully recharge this 20000mAh power bank within 6-8hours via 5V/2A USB port.Fully charging by USB takes approximately 10 hours. DO NOT charge it all day nor over voltage.

The solar power bank will be automatically recharged when the solar panel is placed directly in the sun. (NOTE:Do not expose it to extreme temperatures). Solar charging is a charging way for emergency use, and solar panel charging efficency will be influenced by natural conditions and random factors, please don't rely on solar charging or regard it as the main charging way, please charger it by wall plug for daily use.

Multi-intelligent Protection Mechanism:
Temperature Protection:The thermistor and temperature control mechanism ensures that the power bank operates within a safe temperature range when charging the digital device.

Overvoltage Protection:The OVP circuit design can prevent overvoltage during the charge and discharge processes of the power bank, thus avoiding damage to the back-end circuit.

Short Circuit Protection:The fuse device provides self-protection against motherboard and battery damage when a short circuit fault occurs.

Battery Overcharge or Over-discharge Protection:The use of japan's lithium-ion electric protection device can effectively prevent the batteries from excessive charging and discharging.