Emergency Solar Radio Extralink SR-4000 with Dynamo, 4000mAh Powerbank and SOS Flashlight

The Extralink SR-4000 is an emergency solar radio that combines a solar panel, hand-crank dynamo and a 4000 mAh powerbank to provide portable power in outdoor and emergency situations. It also features an integrated SOS flashlight for signaling and offers AM/FM radio reception to stay informed during power outages or when away from mains electricity.

Advantages

The device integrates multiple power options — solar charging, a manual dynamo and an internal rechargeable battery — so you can charge phones and small USB devices or power the radio without access to mains power. The built-in SOS flashlight adds a signaling function and basic illumination for night-time use. Its compact design is aimed at outdoor activities, camping and household emergency kits.

Suitable for

• Emergency preparedness kits
• Camping and hiking
• Power outages at home
• Outdoor work and remote locations

When it may not be suitable

This unit is intended for basic emergency power and communication tasks rather than replacing full-size power stations or professional radio equipment. The 4000 mAh battery can charge small devices but may not fully recharge larger tablets or multiple smartphones repeatedly without recharging the unit itself. Radio reception depends on local signal strength and may be limited in very remote areas.

Key specifications

• Built-in rechargeable battery capacity: 4000 mAh
• Power sources: solar panel, hand-crank dynamo, USB charging
• Functions: AM/FM radio reception, SOS flashlight, powerbank output (USB)
• Intended use: portable emergency radio and charger for outdoor and home emergency situations

How to use

Charge the internal battery via sunlight on the solar panel, by turning the hand-crank dynamo, or by connecting a USB charger. Use the radio tuner to select AM or FM stations and adjust volume as needed. Connect a compatible device to the USB output to charge it from the internal battery. Activate the SOS flashlight mode for signaling or use the regular light mode for illumination.

What to consider before purchase

• Expected device charging needs versus the 4000 mAh capacity
• Typical radio reception in your area (signal strength may vary)
• Whether you require a larger-capacity power station for prolonged off-grid use

Usage recommendations

For best results keep the solar panel clean and oriented toward direct sunlight when charging, periodically recharge the internal battery to preserve longevity, and test the radio and flashlight regularly as part of your emergency kit checks.